#include <bits/stdc++.h>
using namespace std;
template <class T> T Next() { T buf; cin >> buf; return buf; }

bool sub() {
  vector<int> v;
  for (int i = 0; i < 3; ++i) v.push_back(Next<int>());
  
  vector<int> a = { 1989, 1, 8 };
  vector<int> b = { 2019, 4, 30 };
  return v >= a && v <= b;
}

int main() {
  cout << (sub() ? "Yes" : "No") << endl;
}