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0 音乐节拍 FJ准备教他的奶牛弹奏一首歌曲，歌曲由N(1<=N<=50,000)种音节组成，编号为1到N，而且一定按照从1到N的顺序进行弹奏，第i种音节持续B_i(1<=B_i<=10,000)个节拍，节拍从0开始计数，因此从节拍0到节拍B_1-1弹奏的是第1种音节，从B_1到B_1+B_2-1弹奏的是第2种音节，依此类推。 　　最近奶牛对弹琴不感兴趣了，他们感觉...

题目 Have you ever read any book about treasure exploration? Have you ever see any film about treasure exploration? Have you ever explored treasure? If you never have such experiences, you would never k...