答案：

#include <stdio.h>  int main() 
{int T=0, A=0, B=0, sum=0;scanf("%d", &T);   //输入测试数据的组数while (T--)   //循环T次{scanf("%d %d", &A, &B);   //输入AB的值sum = A + B;if (sum >= 100)   //如果是三位数{sum %= 100;   //保留个位和十位}printf("%d\n", sum);}return 0;
}