Your task is to calculate the sum of some integers.

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. 

For each group of input integers you should output their sum in one line, and you must note that there is a blank line between outputs.

3
4 1 2 3 4
5 1 2 3 4 5
3 1 2 3

10

15

6

基础