View Code of Problem 3495

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>

int mod(int a,int b){
    return a%b;
}

int main(){ 
    int a,b;
    while(scanf("%d %d",&a,&b)!=EOF){
        printf("%d\n",mod(a,b));
    }
	return 0;
}