#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

int main(){
    int y, m, d;
    cin >> y >> m >> d;
    string ans = "No";
    if (1989 <= y && y <= 2019){
        ans = "Yes";
        if (y == 1989 && m == 1 && d < 8)
            ans = "No";
        else if (y == 2019 && m > 4)
            ans = "No";
    } 
    cout << ans << endl;

    return 0;
}