using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Ingrese una palabra: ");

        string frase = Console.ReadLine();

        Console.WriteLine(check(frase));

    }

    public static string check (string x)

    {

    string y = "yt";

    string z = x.Substring(0, 2);

    if (y == z)

    return x;

    else 

    return x.Substring(0, 1) + x.Substring(3);

    }   

}