#include<iostream>
#include<cstdio>
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;
}