C语言这个题如何理解 谢谢
题目描述Your task is to calculate the sum of some integers.
输入
Input contains an integer N in the first line, and then N lines follow. Each line starts with a integer M, and then M integers follow in the same line.
输出
For each group of input integers you should output their sum in one line, and with one line of output for each line in input.
样例输入
2
4 1 2 3 4
5 1 2 3 4 5
样例输出
10
15
