#include <bits/stdc++.h>
using namespace std;
int main(){
  int y,m,d;cin>>y>>m>>d;
  string res = "No";
  if(y > 1989 && 2019 > y)res="Yes";
  else if(y == 1989){
    if(!(m == 1 && d < 8))res="Yes";
  }else if(y == 2019){
    if(m <= 4)res="Yes";
  }
  cout << res << endl;
}