又一版 A+B

#include <stdio.h>   

int ans[70];         

int m;               
long a, b, c;        

int main()           
{                                  
    while (scanf("%d", &m) != EOF && m != 0)
    {                
        scanf("%ld %ld", &a, &b);
        c = a + b;   
        int num = 0;  
        do           
        {            
           ans[num++] = c % m;  
           c /= m;   
        }while(c != 0); 
        for (int i = num - 1; i >= 0; i--)
            printf("%d", ans[i]);
        printf("\n");                                                                                                                                         
    }                
    return 0;        
}