using System;

/*

Convert string into new string

Input: a b c D

Output: c d e F

Input: p l x Y

Output: r n z A

*/

public class Program

{

    public static void Main()

    {

        string input = "plxY";

        String output = "";

        char[] arr = input.ToCharArray();   

        for(int i=0; i<arr.Length; i++)

        {

            if(char.IsUpper((arr[i])))

            {

                char c = (char)(char.ToUpper(arr[i]) + 2);

                if(c > 'Z')

                {

                    c = (char)('A' + (c+'Z')-1);

                }

                output = output + c;

            }

            else

            {

                char c = (char)(char.ToLower(arr[i]) + 2);

                output = output + c;

            }

        }

        Console.WriteLine(output);

    }

}