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.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {
	public static void main(String[] arges) {

		Scanner sc = new Scanner(System.in);
		List<String> k = new ArrayList<String>();

		while (true) {
			String line = sc.nextLine();
			k.add(line);
			if (line.contains("")) {
				break;
			}
		}
		String[] alfalfa = new String[] { "a", "b", "c", "d", "e", "f", "g",
				"h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",
				"t", "u", "v", "w", "x", "y", "z" };
		int[] arfa = new int[26];
		for (String string : k) {
			for (int i = 0; i < string.length(); i++) {
				String one = string.substring(i, i + 1);

				if (one.equals("a") || one.equals("A")) {
					arfa[0]++;
				} else if (one.equals("b") || one.equals("B")) {
					arfa[1]++;
				} else if (one.equals("c") || one.equals("C")) {
					arfa[2]++;
				} else if (one.equals("d") || one.equals("D")) {
					arfa[3]++;
				} else if (one.equals("e") || one.equals("E")) {
					arfa[4]++;
				} else if (one.equals("f") || one.equals("F")) {
					arfa[5]++;
				} else if (one.equals("g") || one.equals("G")) {
					arfa[6]++;
				} else if (one.equals("h") || one.equals("H")) {
					arfa[7]++;
				} else if (one.equals("i") || one.equals("I")) {
					arfa[8]++;
				} else if (one.equals("j") || one.equals("J")) {
					arfa[9]++;
				} else if (one.equals("k") || one.equals("K")) {
					arfa[10]++;
				} else if (one.equals("l") || one.equals("L")) {
					arfa[11]++;
				} else if (one.equals("m") || one.equals("M")) {
					arfa[12]++;
				} else if (one.equals("n") || one.equals("N")) {
					arfa[13]++;
				} else if (one.equals("o") || one.equals("O")) {
					arfa[14]++;
				} else if (one.equals("p") || one.equals("P")) {
					arfa[15]++;
				} else if (one.equals("q") || one.equals("Q")) {
					arfa[16]++;
				} else if (one.equals("r") || one.equals("R")) {
					arfa[17]++;
				} else if (one.equals("s") || one.equals("S")) {
					arfa[18]++;
				} else if (one.equals("t") || one.equals("T")) {
					arfa[19]++;
				} else if (one.equals("u") || one.equals("U")) {
					arfa[20]++;
				} else if (one.equals("v") || one.equals("V")) {
					arfa[21]++;
				} else if (one.equals("w") || one.equals("W")) {
					arfa[22]++;
				} else if (one.equals("x") || one.equals("X")) {
					arfa[23]++;
				} else if (one.equals("y") || one.equals("Y")) {
					arfa[24]++;
				} else if (one.equals("z") || one.equals("Z")) {
					arfa[25]++;
				}
			}
			for (int i = 0; i < arfa.length; i++) {
				System.out.println(alfalfa[i] + " : " + arfa[i]);
			}
		}
	}
}