简单题

#include 
      
       #include 
       
        #include 
        
         #include 
         
          #include 
          
           using namespace std;int reverse_num(int a){    char st[50];    sprintf(st, "%d", a);    reverse(st, st + strlen(st));    int ret;    sscanf(st, "%d", &ret);    return ret;}int main(){    int t;    scanf("%d", &t);    while (t--)    {        int a, b;        scanf("%d%d", &a, &b);        printf("%d\n", reverse_num(reverse_num(a) + reverse_num(b)));    }    return 0;}