#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;
}