import java.util.Scanner;

public class Main {

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

		int[] charArr = new int[26];

		String str;
		while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		}

		for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		}

		scan.close();
	}
}
 import java.util.Scanner; Scanner java.util public class Main {

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

		int[] charArr = new int[26];

		String str;
		while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		}

		for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		}

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

		int[] charArr = new int[26];

		String str;
		while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		}

		for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		}

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

		int[] charArr = new int[26];

		String str;
		while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		}

		for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		}

		scan.close();
	} Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int[] charArr = new int[26]; charArr new int[26] 26 String str; str while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		} scan.hasNext() scan.hasNext scan {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		} str = scan.nextLine() str scan.nextLine() scan.nextLine scan for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			} char c str.toCharArray() str.toCharArray str {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			} {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			} if (c > 64 && c < 91) {
					charArr[c - 65]++;
				} c > 64 && c < 91 c > 64 c 64 c < 91 c 91 {
					charArr[c - 65]++;
				} charArr[c - 65]++ charArr[c - 65] charArr c - 65 c 65 if (c > 96 && c < 123) {
					charArr[c - 97]++;
				} c > 96 && c < 123 c > 96 c 96 c < 123 c 123 {
					charArr[c - 97]++;
				} charArr[c - 97]++ charArr[c - 97] charArr c - 97 c 97 for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		} int i = 0; int i = 0; i 0 i < 26 i 26 i++ i++ i {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		} {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		} System.out.println((char) (i + 97) + " : " + charArr[i]) System.out.println System.out System System.out (char) (i + 97) + " : " + charArr[i] (char) (i + 97) + " : " + charArr[i] (char) (i + 97) i 97 " : " charArr[i] charArr i scan.close() scan.close scan String[] args args public class Main {

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

		int[] charArr = new int[26];

		String str;
		while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		}

		for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		}

		scan.close();
	}
} public class Main {

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

		int[] charArr = new int[26];

		String str;
		while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		}

		for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		}

		scan.close();
	}
} Main
import java.util.Scanner;

public class Main {

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

		int[] charArr = new int[26];

		String str;
		while (scan.hasNext()) {
			str = scan.nextLine();
			for (char c : str.toCharArray()) {
				if (c > 64 && c < 91) {
					charArr[c - 65]++;
				}
				if (c > 96 && c < 123) {
					charArr[c - 97]++;
				}
			}
		}

		for (int i = 0; i < 26; i++) {
			System.out.println((char) (i + 97) + " : " + charArr[i]);
		}

		scan.close();
	}
}

