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

#define st first
#define nd second
#define pb push_back

typedef pair<int,int> pii;
typedef pair<int,pii> piii;

int n , m;

main(){
  ios_base::sync_with_stdio(0),cin.tie(0);
  cin >> n >> m;
  if(n >= 2 && m >= 2){

    if(n%2 == 1) cout << "1\n";
    cout << "0\n";

  }
  if(n%2 == 0 && m == 1) cout << "0\n";
  if(n%2 == 1 && m == 1) cout << "1\n";
  if(n == 1 && m%2 == 0) cout << "2\n";
  if(n == 1 && m%2 == 1) cout << "1\n";
}