Problem:
Counting Characters

Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.

Input

A sentence in English is given in several lines.

Output

Prints the number of alphabetical letters in the following format:

a : The number of 'a'
b : The number of 'b'
c : The number of 'c'
.
.
z : The number of 'z'

Constraints

The number of characters in the sentence < 1200

Sample Input

This is a pen.

Sample Output

a : 1
b : 0
c : 0
d : 0
e : 1
f : 0
g : 0
h : 1
i : 2
j : 0
k : 0
l : 0
m : 0
n : 1
o : 0
p : 1
q : 0
r : 0
s : 2
t : 1
u : 0
v : 0
w : 0
x : 0
y : 0
z : 0

Solution in C# (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Globalization;

enum occupant
{
build, floor, room, number
}

class Program
 {



    static void Main(string[] args)
    {
        string nyuryoku;
        int[] alphabet = new int[26];
        int moji;
        string text = "";
        int ch;
        while (true)
        {
            ch = Console.Read();
            if(ch == -1)
                break;
            if (ch >= 'a' & ch<= 'z')
                moji = ch- 'a';
            else if (ch >= 'A' & ch <= 'Z')
                moji = ch - 'A';
            else
                continue;
            alphabet[moji]++;
        }
        for (int i = 0; i < 26; i++)
            Console.WriteLine("{0} : {1}", (char)('a' + i), alphabet[i]);
    }


 


 }