BigData_Jia

 #include <stdio.h>
 #include <string.h>
 #define MaxSize 10000
 int n1, n2, i, k, times;
 char symbol;
 char data1[MaxSize], data2[MaxSize];
 int max(int n1, int n2){
     if(n1 > n2)
         return n1;
     else
         return n2;
 }
 void getchars_two(char data_one[MaxSize], char data_two[MaxSize]) {
     int n;
     scanf("%s%s",data1, data2);
     n1 = n = strlen(data1);
     for(i = ; i < n; ++i){
         data_one[i] = data1[n - i - ];
     }
     n2 = n = strlen(data2);
     for(i = ; i < n; ++i){
         data_two[i] = data2[n - i - ];
     }
     if(n1 > n2)
         for(i = n2; i < n1; ++i){
             data_two[i]  = '';
         }
     else
         for(i  = n1; i < n2; ++i)
             data_one[i] = '';
 }
 void getchars_one(char data_one[MaxSize], char data_two[MaxSize]) {
     char data[MaxSize];
     int n;
     gets(data);
     n1 = n = strlen(data);
     for(i = ; i < n; ++i){
         data_one[i] = data[n - i - ];
     }
     gets(data);
     n2 = n = strlen(data);
     for(i = ; i < n; ++i){
         data_two[i] = data[n - i - ];
     }
     if(n1 > n2)
         for(i = n2; i < n1; ++i){
             data_two[i]  = '';
         }
     else
         for(i  = n1; i < n2; ++i)
             data_one[i] = '';
 }
 void big_data_jia(char data_one[MaxSize], char data_two[MaxSize], char data_three[MaxSize]){
     char data_jin;
     int Max, value;
     data_jin = '';
     Max = max(n1, n2);
     for(i = ; i < Max; ++i){
         value = (int)data_one[i] + (int)data_two[i] + (int)data_jin - ;
         if(value < ){
             data_three[i] = (char)(value + );
             data_jin = '';
         }
         else{
             data_three[i] = (char)(value % + );
             data_jin = (char)(value /  + );
         }
     }
     if(data_jin != '')
         data_three[i++] = data_jin;
 }
 void print_char(char data_three[MaxSize]){
     int j;
     printf("%s + %s = ", data1, data2);
     j = i - ;
     if(data_three[j] == '') {
         printf("0\n");
         return ;
     }
     for(; j >= ; j--){
         printf("%c", data_three[j]);
     }
     printf("\n");
     if(k != times)
         printf("\n");
 }
 int main(int argc, char const *argv[])
 {
     scanf("%d\n", &times);
     for(k = ; k <= times; ++k){
         char data_one[MaxSize], data_two[MaxSize], data_three[MaxSize];
         getchars_two(data_one, data_two);
         big_data_jia(data_one, data_two, data_three);
         printf("Case %d:\n", k);
         print_char(data_three);
     }
     return ;
 }