10055- Hashmat

#include<stdio.h>
int main()
{
    long int m,n;
    while(scanf("%ld%ld", &m, &n)!= EOF)
    {
      if(m>n)
        printf("%ld\n",m-n);
      else
        printf("%ld\n",n-m);
    }
    return 0;
}