输入若干个数(不超过 100010001000 个数),求他们的和。
一行若干个用空格分隔的整数 aia_iai(1≤ai≤1041≤a_i≤10^41≤ai≤104 ),最后会以 −1-1−1 表示结束。(−1-1−1 不需要统计)
一个整数,表示 这些数的和。
10 20 30 -1
60
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