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.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc= new Scanner(System.in);
        
        int[] count=new int['z'];
        for(int i:count){
            i=0;
        }
       while(sc.hasNext()){
           
           String s=sc.next();
           s=s.toLowerCase();
           char[] c=s.toCharArray();
           
           
           for(char a:c){
               
              count[a-1]++;
           }
       }
        
    for(int i='a';i<='z';i++){
        
        System.out.print((char) i+":"+count[i-1]);
    }
        
       
        
       
    }
}