1 #include<cstdio>
 2 #include<cstring>
 3 
 4 int main()
 5 {
 6     int a[1005];
 7     char s[1005];
 8     int m,i,j;
 9     while(scanf("%s%d",s,&m)!=EOF)
10     {
11         int len=strlen(s);
12         for(j=0,i=len-1;i>=0;i--)
13         a[j++]=s[i]-‘0‘;
14         int sum=0;
15         for(j-=1;j>=0;j--)
16         sum=(sum*10+a[j])%m;
17         printf("%d\n",sum);
18     }
19     return 0;
20 }