using System;

public class Program

{

    public static void Main()

    {

​

            var ccs = new string[] {

                @"QVXSZUVY\ZYYZ[a",

                @"QOUW[VT^VY]bZ_",

                @"SPPVSSYVV\YY_\\]",

                @"RPQRSTUVWXYZ[\]^",

                @"QTVWRSVUXW[_Z`\b",

                @"SlQRUPXWVo\Vuv_n_\ajjce"

            };

​

            foreach(var cc in ccs)

            {

                var startValue = 30;

                for (var i = 0; i < cc.Length; i++)

                {

​

                    char newChar = (char)(cc[i] - startValue);

​

                    Console.Write(newChar);

                    startValue++;

​

​

                }

                Console.WriteLine();

            }

    }

}