import java.util.Scanner;
public class Salary
{
    public static void main (String[] args)
    {

        Scanner input = new Scanner(System.in);
        System.out.print("Hai");
        String chunk;
        chunk = input.nextLine();
        int chunkLength = chunk.length();
        char firstChar = chunk.charAt(0);
        char lastChar = chunk.charAt(chunkLength);
        if (firstChar == ':' && lastChar == ':')
        {
            System.out.println("Win");
        }
        else
        {
            System.out.println("Fail");
        }
    }
}