64seconds
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1 to 4 have 3floors = 48 sec
! w( {) s& C' e" c) X+ FTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。avg. 48/3 = 16sec
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4 to 8 have 4floors = 16x4; r$ D ]4 z, M& H6 J
= 64secs |