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

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int gx,gy; cin >> gx >> gy;
    if(gx == 0 || gy == 0) cout << 1 << endl;
    else if(gx == gy || gx == -gy) cout << 1 << endl;
    else cout << 2 << endl;
}