#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
int main() {
    // Input
    int A, B, C;
    cin >> A >> B >> C;

    // Output
    int X = 2 * (A * B + B * C + C * A);
    int Y = A * B * C;
    cout << (X > Y ? 2 : 3) << endl;
}