
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		int[] list = new int[26];
		while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		}

		for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		}

	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		int[] list = new int[26];
		while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		}

		for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		}

	}
} Main public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		int[] list = new int[26];
		while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		}

		for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		}

	} main {
		Scanner scanner = new Scanner(System.in);

		int[] list = new int[26];
		while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		}

		for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		}

	} Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) int[] list = new int[26]; list new int[26] 26 while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		} scanner.hasNext() scanner.hasNext scanner {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		} String a = scanner.nextLine(); a scanner.nextLine() scanner.nextLine scanner for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			} int i = 0; int i = 0; i 0 i < a.length() i a.length() a.length a i++ i++ i {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			} {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			} int c = a.toLowerCase().codePointAt(i) - 97; c a.toLowerCase().codePointAt(i) - 97 a.toLowerCase().codePointAt(i) a.toLowerCase().codePointAt a.toLowerCase() a.toLowerCase a i 97 if (c >= 0)
					list[c]++; c >= 0 c 0 list[c]++ list[c] list c for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		} int i = 0; int i = 0; i 0 i < list.length i list.length list list.length i++ i++ i {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		} {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		} System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i])) System.out.println System.out System System.out String.format("%s : %d", (char) (i + 97),
					list[i]) String.format String "%s : %d" (char) (i + 97) i 97 list[i] list i String[] args args public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		int[] list = new int[26];
		while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		}

		for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		}

	}
} public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		int[] list = new int[26];
		while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		}

		for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		}

	}
} Main

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		int[] list = new int[26];
		while (scanner.hasNext()) {
			String a = scanner.nextLine();
			
			for (int i = 0; i < a.length(); i++) {
				int c = a.toLowerCase().codePointAt(i) - 97;
				if (c >= 0)
					list[c]++;
			}
		}

		for (int i = 0; i < list.length; i++) {
			System.out.println(String.format("%s : %d", (char) (i + 97),
					list[i]));
		}

	}
}