10055 Hashmat the brave warrior

#include <stdio.h>

int main()
{
    long long int a, b;
    while(scanf("%lld %lld", &a, &b) == 2)
    {
        if (a >= b)printf("%lld\n", a - b);
        else printf("%lld\n", b - a);
    }
    return 0;
}