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http://www.youtube.com/watch?v=G-k-dcP-dSg&feature=youtu.be
-2?????? ?????????
http://www.youtube.com/watch?v=kX9PmlVOHmU&feature=youtu.be
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-2?????? ?????????
http://www.youtube.com/watch?v=YrGCRDm84wY&feature=youtu.be