#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int y, m, d;
  cin >> y >> m >> d;
  if (1989 < y && y < 2019) {
    cout << "Yes" << endl;
  }
  else if (y == 1989 && (m > 1 || d >= 8)) {
    cout << "Yes" << endl;
  }
  else if (y == 2019 && (m < 4 || (m == 4 && d <= 30))) {
    cout << "Yes" << endl;
  }
  else {
    cout << "No" << endl;
  }
  return 0;
}