/*

*/
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

#define rep(i, n) for(int i = 0; i < (int)(n); i++)

int main(){

  int a, b, c;
  cin >> a >> b >> c;

  int x = a*b*2 + b*c*2 + a*c*2;
  int y = a*b*c;

  if(x > y){
    cout << 2 << endl;
  }else{
    cout << 3 << endl;
  }

  return 0;
}