#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n,m;
    cin>>n>>m;
    if((n%2==0 && m%2==0) || (n%2!=0 && m%2!=0))
    {
        cout<< 1;
    }
    else
    {
        cout<< 0;
    }
    return 0;
}