#include <iostream>
#include <string>
#include <vector>

using namespace std;

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    int Y,M,D;
    string X;
    cin >> Y >> M >> D;

    X = "No";

    if (Y > 1989) {
        X = "Yes";
    }

    if (X == "Yes") {
            if (Y == 1989)
            {
                if(M > 0){
                X = "Yes";
            }
        }
    }
    if (X == "Yes") {
        if (M == 1)
        {
            if (D > 7){
                X = "Yes";
            }
        }

    }

    if (Y < 2020) {
        X = "Yes";
    }
    
    if (X == "Yes") {
        if (Y == 2019)
        {
            if(M < 6){
            X = "Yes";
            }
        }
    }

    if (X == "Yes") {
        if (M == 5)
        {
            if (D < 31){
                X = "Yes";
            }
        }

    }

    cout << X << "\n";
}