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

int main() {
  int A, B, C;
  cin >> A >> B >> C;
  int Y = A * B * C;
  int X = 2 * (A * B + B * C + C * A);
  if (X > Y) {
    cout << 2 << endl;
  }
  else {
    cout << 3 << endl;
  }
}