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 JAVA (judge verdict: Wrong Answer)

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO ?????????????????????????????????????????????

		Scanner scan = new Scanner(System.in);
		//??????????????????
		String strLine = scan.nextLine();

		//str???????§£??????char[]???????´?
		char[] aryLine= strLine.toCharArray();

		char x = 'a';
		//a???z?????§?????°?????????
		for(int j = 'a'; j <= 'z'; j++){
			//??¢????????????????????????????????????????????°
			int intCount = 0;



			for(int i = 0; i < aryLine.length; i++){

				//??§???????????£?????´???????°????????????????
				if(Character.isUpperCase(aryLine[i])){
					aryLine[i] = Character.toLowerCase(aryLine[i]);
				}
				//??¢???????????????????????????????????¢??????
				if( j == aryLine[i]){
					intCount++;
				}
			}
			String az = String.valueOf(j);
			System.out.print(x++);
			System.out.println(" : " + intCount);

		}
	}

}