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){
        Scanner sc = new Scanner(System.in);
        int data[] = new int[26];
        String test = "abcdefghijklmnopqrstuvwxyz";
        String str,str2;
        int j,i;

        while(sc.hasNext()) {
            str = sc.nextLine();
            str2=str.toLowerCase();


            for(i=0;i<str2.length();i++){
            	for(j=0;j<26;j++) {
            		if(test.charAt(j)==str2.charAt(i))data[j]++;
            	}
            }

        }
        System.out.println(data[0]);
        for(i=0;i<26;i++) {
        	System.out.println(data[i]);
        }

        sc.close();
    }
}