#include <iostream>
using namespace std;
int main() {
    int b1, b2, b3;
    cin >> b1 >> b2 >> b3;
    if ((b1 && b2 && !b3) || (!b1 && !b2 && b3)) {
        cout << "Open" << endl;
    } else {
        cout << "Close" << endl;
    }
    return 0;
}