#include <iostream>
using namespace std;
int main(void){
    // Your code here!
    int Year , Month , Day;
    cin >> Year;
    cin >> Month;
    cin >> Day;
    
    if(Year < 1989 || Year > 2019){
        cout << "No" << endl;
    }else if(Year == 1989){
        if(Month == 1){
            if(Day < 8){
                cout << "No" << endl;
            }else{
                cout << "Yes" << endl;
            }
        }else if(Month > 1){
            cout << "No" << endl;
        }
    }else if(Year == 2019){
        if(Month > 4){
            cout << "No" << endl;
        }else{
            cout << "Yes" << endl;
        }
    }else{
        cout<< "Yes" << endl;
    }
}