#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=int(a);i<int(b);++i)
using namespace std;
typedef long long ll;
int INF = (1LL << 30) - 1;
int MOD = 1e9+7;
main(){

    int arr[3];
    cin >> arr[0] >> arr[1] >> arr[2];
    int left[] = {1989, 1, 8};
    int right[] = {2019, 4, 30};
    rep(i,0,3){
        if(arr[i] < left[i]){
            cout << "No" << endl;
            return 0;
        }else if(arr[i] > left[i]){
            break;
        }
    }
    rep(i,0,3){
        if(arr[i] > right[i]){
            cout << "No" << endl;
            return 0;
        }else if(arr[i] < right[i]){
            break;
        }
    }
    cout << "Yes" << endl;
}