#include<iostream>
#include<vector>
#include<cmath>
using namespace std;
long long fr(int k){
    for (long long i = k; i >=0; --i)
        if (i*i <= k) return i;
}
int x, y;
int main(){
    cin >> x >> y;
    int f = fr(x*x + y*y); bool is = false;
    if (f*f == x*x + y*y) is = true;
    if ((x > 0 && y > 0) || (x < 0 && y < 0)){
        if (f % 2 == 0 && !is) cout << "black";
        if (f % 2 == 1 && !is) cout << "white";
    }
    else if ((x > 0 && y < 0) || (x < 0 && y > 0)){
        if (f % 2 == 1 && !is) cout << "black";
        if (f % 2 == 0 && !is) cout << "white";
    }
    if (is) cout << "black";
}