using System.Text.RegularExpressions; using System.Collections.Generic; using System; public class hello { public static HashSet hs; public static string ok = "CORRECT (maybe)"; public static string ng = "WRONG!"; static void Main() { //var a0 = new string[] { "digi", "petit", "gema", "piyo" ,"rabi"}; var a0 = new string[] { "digi ", "gema ", "piyo ", }; hs = new HashSet(); foreach (var x in a0) hs.Add(x); string L; for (; (L = Console.ReadLine()) != null;) { if (L.Length < 5) { Console.WriteLine(ng); continue; } var name = L.Substring(0, 5); if (name == "rabi ") getAns0(L.Substring(5)); else { if (hs.Contains(name)) getAns(name.Substring(0, 4), L.Substring(5)); else { var name2 = L.Substring(0, 6); if (name2 == "petit ") getAns(name.Substring(0, 5), L.Substring(6)); else Console.WriteLine(ng); } } } } static void getAns0(string t) { Console.WriteLine(Regex.IsMatch(t, @"[a-zA-Z0-9]{1,}")? ok:ng); } static void getAns(string a, string b) { var t = b.ToLower(); bool ans; if (a == "digi") ans = Regex.IsMatch(t, @"nyo\W{0,3}$"); else if (a == "petit") ans = Regex.IsMatch(t, @"nyu\W{0,3}$"); else if (a == "gema") ans = Regex.IsMatch(t, @"gema\W{0,3}$"); else ans = Regex.IsMatch(t, @"pyo\W{0,3}$"); Console.WriteLine(ans ? ok : ng); } }