#include <bits/stdc++.h>
using namespace std;

vector<int> low({1989, 1, 8}), high({2019, 4, 30}), now(3);
int main() {
    cin >> now[0] >> now[1] >> now[2];
    if (low <= now && now <= high) cout << "Yes" << endl;
    else cout << "No" << endl;
    return 0;
}