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.io.*;
import java.util.Arrays;
import java.util.Scanner;

public class Main{
	public static void main(String[] args) throws IOException{ 
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line;
		int[] abc = new int[26];
		while((line = br.readLine()) != null){
			for (int i = 0; i<line.length() ; i++ ) {
				char c = line.charAt(i);
				c = Character.toLowerCase(c);
				char cc ='a';
				for (int j = 0; j<abc.length ; j++ ) {
					if (cc == c) {
						abc[j]++;
						cc++;
					}
				}
			}
		}

		char c ='a';
		for (int i = 0 ; i<abc.length ; i++ ) {
			System.out.println(c+" : "+abc[i]);
			c++;
		}
	}
}