#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"<<endl;
}else{
cout<<"Valores nao aceitos"<<endl;
}
return 0;
}