#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;

vector<int> low ={1989,1,8};
vector<int> high = {2019,4,30};
vector<int> now(3);
int main() {

	cin>>now[0]>>now[1]>>now[2];
	
	if(low <=now && now <= high){
		writeln("Yes");
	}else {
		writeln("No");
	}
	
}