#include<iostream>
#include<cstring>
#include<algorithm>

using namespace std;

int main(){
    int a, b, c, d;
    cin >> a >> b >> c >> d;
    if(b>c && d > a && (c+d) > (a+b) && c > 0 && d > 0 && a%2 == 0){
        cout << "Valores aceitos";
    }else {
        cout << "Valores nao aceitos";
    }

    return 0;
}