using System; using System.IO; using System.Linq; class Program { static void Assert(bool expr, string message) { if (!expr) { Console.Error.WriteLine("Error: " + message); Environment.Exit(1); } } static string GetCheckedInput(string input) { Assert(input.EndsWith(Environment.NewLine), "No newline"); var lines = input.Split(new string[] { Environment.NewLine }, StringSplitOptions.None); Assert(lines.Count() == 2, "Too many inputs"); Assert(2 <= lines[0].Count(), "|S| < 2"); Assert(lines[0].Count() <= 10, "|S| > 10"); Assert(lines[0].All(c => ('a' <= c && c <= 'z')), "Invalid character"); return lines[0]; } static string Solve(string s) { var lasts = s.Substring(s.Length - 2); if (lasts == "ai") return s.Substring(0, s.Length - 2) + lasts.ToUpper(); else return s + "-AI"; } static void Main() { using (var sr = new StreamReader(Console.OpenStandardInput())) { var rawInput = sr.ReadToEnd(); var s = GetCheckedInput(rawInput); Console.WriteLine(Solve(s)); } } }