#include <iostream>

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;
}