#include<bits/stdc++.h>
using namespace std;

const long long INF = 1LL << 60;
#define MOD 1000000007;

typedef long long ll;

#define writeln(n) cout<<n<<endl;

typedef pair<int, int> P;

typedef pair<string, int> Psi;


int main() {

	int y,m,d;
	cin>>y>>m>>d;
	
	if(1989 <=y && 1 <=m && 8<=d){
		writeln("Yes");
	}else {
		writeln("No");
	}
}