using System;
public class Test
{
public static void Main()
{
byte a = Convert.ToByte(Console.Read());
byte b = Convert.ToByte(Console.ReadLine());
byte c = Convert.ToByte(Console.Read());
byte d = Convert.ToByte(Console.ReadLine());
if ((Math.Abs(a-c)==1 && Math.Abs(b-d)==2) || (Math.Abs(b-d)==1 && Math.Abs(a-c)==2))
{
Console.WriteLine("Бьёт");
}
else
{
Console.WriteLine("Не бьёт");
}
}
}
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