哪里有教做荷叶馒的

寻找荷叶馒头的技艺与正宗秘方
在中华传统饮食文化的浩瀚星河中，荷叶馒头占据着独特而重要的位置。这种面食不仅承载着深厚的情感记忆，更凝聚了匠人对自然食材的敬畏之心。荷叶馒头以其独特的清绿色泽和清香口感，在各类宴席和日常膳食中屡见不鲜。然而，市面上充斥着各种名为“荷叶馒头”的速成产品，其口感往往流于表面，缺乏真正的匠心。若要探寻正宗的荷叶馒头制作技艺，必须深入理解其背后的工艺流程与核心要诀。
荷叶馒头的制作讲究“取时、选叶、揉和、蒸制”四个关键步骤。首先，选材是决定成品品质的首要环节。荷叶必须选用四季荷叶中的夏秋季节采摘者，此时叶片肥厚、叶脉清晰，且带有淡淡的清香，这是制作美味荷叶馒头的基础。若选用秋季干燥的荷叶，则会导致成品色泽暗淡，口感发硬。其次，揉和环节不可或缺。将洗净的荷叶放入盆中，加入适量清水，用手反复揉搓，直至叶片完全展开、无褶皱。这一步骤不仅能去除荷叶表面的杂质，还能让荷叶内部充满水分，为后续蒸制做好准备。
在蒸制过程中，火候的把控更是决定成败的关键。正宗的荷叶馒头蒸制时间不宜过长，一般控制在十分钟至十五分钟之间，具体时长需根据荷叶的厚薄程度调整。蒸好后，荷叶馒头应呈现出自然的翠绿色，表面光滑无焦痕，且带有丝丝缕缕的清香。若蒸制时间不足，荷叶内部水分未充分蒸熟，食用时会有生涩感；若蒸制时间过长，则会导致叶片变黑，影响色泽，同时破坏口感的鲜嫩度。此外，搭配佐料的时机也至关重要。荷叶馒头不宜在刚出锅时立即食用，建议稍作冷却后食用，这样能更好地激发其独特的清香，使口感更加丰富。
荷叶馒头在制作过程中还蕴含着深厚的文化寓意。在中国传统文化中，荷叶象征着纯洁与高雅，其绿色代表生机与活力。将荷叶制成馒头，寓意着生活如这叶般清新，如同这般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般般