#include <iostream>
#include <cassert>
#include <iomanip>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int a, b, c; cin >> a >> b >> c;
  int s = (a * b + b * c + c * a) * 2, v = a * b * c;
  cout << (s > v? 2: 3) << endl;
  return 0;
}