using System;

namespace task._09
{
    public class Program
    {
        public static void Main()
        {
            var text = Console.ReadLine();

            for (int i = 0; i < text.Length; i++)
            {
                switch (text[i])
                {
                    case 'a':Console.WriteLine("a -> 0");break;
                    case 'b':Console.WriteLine("b -> 1");break;
                    case 'c':Console.WriteLine("c -> 2");break;
                    case 'd':Console.WriteLine("d -> 3");break;
                    case 'e':Console.WriteLine("e -> 4");break;
                    case 'f':Console.WriteLine("f -> 5");break;
                    case 'g':Console.WriteLine("g -> 6");break;
                    case 'h':Console.WriteLine("h -> 7");break;
                    case 'i':Console.WriteLine("i -> 8");break;
                    case 'j':Console.WriteLine("j -> 9");break;
                    case 'k':Console.WriteLine("k -> 10");break;
                    case 'l':Console.WriteLine("l -> 11");break;
                    case 'm':Console.WriteLine("m ->12");break;
                    case 'n':Console.WriteLine("n -> 13");break;
                    case 'o':Console.WriteLine("o -> 14");break;
                    case 'p':Console.WriteLine("p -> 15");break;
                    case 'q':Console.WriteLine("q -> 16");break;
                    case 'r':Console.WriteLine("r -> 17");break;
                    case 's':Console.WriteLine("s -> 18");break;
                    case 't':Console.WriteLine("t -> 19");break;
                    case 'u':Console.WriteLine("u -> 20");break;
                    case 'v':Console.WriteLine("v -> 21");break;
                    case 'w':Console.WriteLine("w -> 22");break;
                    case 'x':Console.WriteLine("x -> 23");break;
                    case 'y':Console.WriteLine("y -> 24");break;
                    case 'z':Console.WriteLine("z -> 25");break;
                }
            }
        }
    }
}