#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using i64 = long long int;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  auto x = (a * b + b * c + c * a) * 2, y = a * b * c;
  cout << (x > y ? "2" : "3") << "\n";
  return 0;
}