#include <bits/stdc++.h>
#define rep(i, ss, ee) for (int i = ss; i < ee; ++i)
using namespace std;

void solve() {
  vector<int> s{1989, 1, 8};
  vector<int> e{2019, 4, 30};
  vector<int> t(3);
  cin >> t[0] >> t[1] >> t[2];
  cout << ((s < t && t < e) ? "Yes" : "No") << endl;
}

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
  getchar();
}