import java.io.File;
import java.io.FileNotFoundException;
import java.text.DecimalFormat;
import java.util.Scanner;
import uwcse.io.Input;

public class FileInputExample {

	public static void main(String[] args) {
		// Create a Scanner to read the input file
		String fileName = new Input().readString("Input file name? ");
		System.out.println();
		Scanner scan;

		try {
			scan = new Scanner(new File(fileName));
		} catch (FileNotFoundException e) {
			System.out.println(fileName + " doesn't exist!");
			return;
		}

		// Read the file and count the number of occurences of A, B, ...
		int[] count = new int[26];
		while (scan.hasNextLine()) {
			String line = scan.nextLine();
			line = line.toLowerCase();
			for (int i = 0; i < line.length(); i++) {
				char c = line.charAt(i);
				if (c >= 'a' && c <= 'z') {
					count[c - 'a']++;
				}
			}
		}
		scan.close();

		int length = 0;
		for (int i = 0; i < count.length; i++) {
			length += count[i];
		}

		// Display the statistics (as an histogram)
		DecimalFormat df = new DecimalFormat("0.00");
		for (int i = 0; i < count.length && length > 0; i++) {
			double percent = count[i] * 100.0 / length;
			String display = "" + (char) ('a' + i);
			display += "(" + df.format(percent) + "%):\t";
			for (int j = 1; j <= Math.round(percent); j++) {
				display += "X";
			}
			System.out.println(display);
		}

	}
}