#include <bits/stdc++.h>
using namespace std;
int main() {
  cin.tie(0); cout.tie(0);
  ios::sync_with_stdio(false);
  int A, B, C;
  cin >> A >> B >> C;
  int X = 2 * (A * B  + B * C + C * A);
  int Y = A * B * C;
  if(X > Y) {
    cout << "2\n";
  } else {
    cout << "3\n";
  }
  return 0;
}