#include <iostream>

using namespace std;

int main () {
    int A, B, C; cin >> A >> B >> C;

    int X = 2*A*B + 2*A*C + 2*B*C;
    int Y = A*B*C;

    if (Y < X) {
        cout << 2 << "\n";
    }
    else {
        cout << 3 << "\n";
    }
}