1 #include <stdio.h>
 2 #include <string.h>
 3 char str[1010] ;
 4 int main()
 5 {
 6     int i, n ;
 7     while(~scanf("%s %d", str, &n))
 8     {
 9         int mod = 0 ;
10         int len = strlen(str) ;
11         for(i = 0; i < len; i++)
12         mod = (mod * 10 + str[i] - ‘0‘) % n ;
13         printf("%d\n", mod) ;
14     }
15     return 0 ;    
16 }