// // Here your code !
 list($major, $minor, $release) = explode(".", trim(fgets(STDIN)));
 list($input_major, $input_minor, $input_release) = explode(".", trim(fgets(STDIN)));
 
if ($major >= $input_major) {
    if ($major == $input_major) {
        if ($minor >= $input_minor) {
            if ($minor == $input_minor) {
                if ($release >= $input_release) {
                    echo "YES";
                    exit();
                } else {
                    echo "NO";
                }
            }
            echo "YES";
            exit();
        } else {
            echo "NO";
        }
    } else {
        echo "YES";
    }
}