#include <iostream>
#include <string>

using namespace std;

int main() {
    int a1, a2, a3;
    int b1, b2, b3;
    cin >> a1;
    cin.ignore();
    cin >> a2;
    cin.ignore();
    cin >> a3;
    cin.ignore();
    cin >> b1;
    cin.ignore();
    cin >> b2;
    cin.ignore();
    cin >> b3;
    cin.ignore();

    if (a1 != b1) {
        (a1 > b1 ? cout << "YES" << endl : cout << "NO" << endl);
    } else {
        if (a2 != b2) {
            (a2 > b2 ? cout << "YES" << endl : cout << "NO" << endl);
        } else {
            if (a3 != b3) {
                (a3 > b3 ? cout << "YES" << endl : cout << "NO" << endl);
            } else {
                cout << "YES" << endl;
            }
        }
    }
    return 0;
}