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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

	public static void main(String[] args) throws IOException {



		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));


		int[] cnt= new int[26];
		char cr ;


		
			String input = br.readLine();
			String lowerinput = input.toLowerCase();

			for(int i=0;i<lowerinput.length();i++){
				cr = lowerinput.charAt(i);
				if('a'<=cr && cr<='z'){
					cnt[cr-'a']++;
				}
			}	
			cr='a';
			for(int i=0;i<26;i++){
				System.out.println(cr++ +" : "+ cnt[i]);
			}
			/*
			for(int i=0;i<26;i++){
				cnt[i]=0;
			}*/

		

		//??????

	}
}