Whats wrong in this code?
Solving the Code Coach Problem - (Secret Message)! using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace SoloLearn { class Program { static void Main(string[] args) { string input = Console.ReadLine(); char[] inputt = input.ToCharArray(); char[] letters = new char[] {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'}; char[] rletters = new char[] {'z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a'}; for(int i=0; i< inputt.Length; i++) { for(int a=0; a< letters.Length;a++) { if(inputt[i] == letters[a]) { inputt[i] = rletters[a]; } } } string output = new string(inputt); Console.WriteLine(output); } } }