NYOJ 题目400 I'll play a trick on you

I'll play a trick on you

时间限制：3000 ms | 内存限制：65535 KB难度：1描述Please look the picture carefully. Then I'll give you two integers and your task is output the third one.Please never doubt the picture.输入The first line is a number T(1<=T<=30), represents the number of case. The next T blocks follow each indicates a case.Each case contains two integers A,B (1<=B<=A<=10^100)输出For each case, output the number of case and the third integer.样例输入

3
99 72
45 27
39 18

样例输出

27
18
21

此题好灵活~！

#include<stdio.h>#include <string.h>char a[105],b[105];int main (void){//  freopen("题目400.txt","r",stdin);// char c;int n,i,j,l1,l2,sum;while(scanf("%d",&n)!=EOF){getchar();for(i=1;i<=n;i++){sum=0;scanf("%s%s",a,b);l1=strlen(a);l2=strlen(b);for(j=0;j<l1;j++)sum+=(a[j]-'0');for(j=0;j<l2;j++)sum+=(b[j]-'0');printf("%d\n",sum);}}return 0;}