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

ll gx,gy;
int main(){
    cin >> gx >> gy;
    if(gx * gx + gy * gy == 0) {
        cout << 0 << endl;
        return 0;
    }
    if(gx == 0 || gy == 0 || abs(gx) == abs(gy)){
        cout << 1 << endl;
        return 0;
    }
    cout << 2 << endl;
}