// question of uri 1035 Selection Test 1
// 1035 (Mahmud_Jamil) BRUR
#include<stdio.h>
int main()
{
int a,b,c,d;
scanf("%d %d %d %d",&a,&b,&c,&d);
if (b>c && d>a && c+d>a+b && c>0 && d>0 && a%2==0) {
printf("Valores aceitos\n");
}
else{
printf("Valores nao aceitos\n");
}
return 0;
}