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

const int iinf = 1e9;
const ll inf = 1e18;

template<typename T>
ostream& operator<<(ostream &o, vector<T> v) {
    for (int i = 0; i < v.size(); i++)
        o << v[i] << (i+1<v.size()?" ":"");
    return o;
}

int main() {
    cin.tie(0)->sync_with_stdio(false);
    int gx, gy;
    cin >> gx >> gy;
    if (gx == 0 || gy == 0 || gx == gy || gx == -gy) {
        cout << 1 << endl;
    } else {
        cout << 2 << endl;
    }

}