static void Main(string[] args)
{
KeyDungeonDiv2 x = new KeyDungeonDiv2();
int[] a = { 0,0,0 };
int[] b = { 0,0,0 };
int[] c = { 2, 3, 1 };
Console.WriteLine(x.countDoors(a,b,c));
Console.ReadLine();
}
static void Main(string[] args)
{
KeyDungeonDiv2 x = new KeyDungeonDiv2();
int[] a = { 0, 0, 0 };
int[] b = { 0, 0, 0 };
int[] c = { 2, 3, 1 };
Console.WriteLine(x.countDoors(a, b, c));
Console.ReadLine();
}