using System;
using System.Linq;
using System.Collections.Generic;

namespace apps
{
    class Program
    {

        static string Get() { return Console.ReadLine(); }

        static void Main()
        {



            string input = Get();
            Dictionary<char, int> occurances = new Dictionary<char, int>();
            foreach (char c in input)
            {
                if (c == ' ') { continue; }
                if ( occurances.ContainsKey(c) == false  )
                {
                    occurances.Add(c, 1);
                }
                else
                {
                    occurances[c]++;
                }
            }


            foreach (var v in occurances)
            {

                    Console.WriteLine($"{v.Key} -> {v.Value}");

            }

        }// END MAIN
    }
}