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

int main(){
    int x=0;
    int y=0;
    int temp=0;
    cin >> x;
    cin >> y;
    if(x==y ||x==-y){
        temp = 1;
    }
    else{
        temp = 2;
    }
    cout << temp << endl;
}