import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int table[] = new int[26];
		while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		}
		for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int table[] = new int[26];
		while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		}
		for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		}
	}
} Main public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int table[] = new int[26];
		while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		}
		for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		}
	} main {
		Scanner in = new Scanner(System.in);
		int table[] = new int[26];
		while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		}
		for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		}
	} Scanner in = new Scanner(System.in); in new Scanner(System.in) int table[] = new int[26]; table new int[26] 26 while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		} in.hasNext() in.hasNext in {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		} String s = in.nextLine(); s in.nextLine() in.nextLine in for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			} int i = 0; int i = 0; i 0 i < s.length() i s.length() s.length s i++ i++ i {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			} {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			} char ch = Character.toLowerCase(s.charAt(i)); ch Character.toLowerCase(s.charAt(i)) Character.toLowerCase Character s.charAt(i) s.charAt s i if (Character.isAlphabetic(ch))
					table[ch - 'a']++; Character.isAlphabetic(ch) Character.isAlphabetic Character ch table[ch - 'a']++ table[ch - 'a'] table ch - 'a' ch 'a' for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		} int i=0; int i=0; i 0 i<26 i 26 i++ i++ i {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		} {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		} char ch = (char) ('a' + i); ch (char) ('a' + i) 'a' i System.out.println(ch + " : " + table[ch - 'a']) System.out.println System.out System System.out ch + " : " + table[ch - 'a'] ch + " : " + table[ch - 'a'] ch " : " table[ch - 'a'] table ch - 'a' ch 'a' String[] args args public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int table[] = new int[26];
		while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		}
		for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		}
	}
} public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int table[] = new int[26];
		while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		}
		for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		}
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int table[] = new int[26];
		while(in.hasNext()) {
			String s = in.nextLine();
			for (int i = 0; i < s.length(); i++) {
				char ch = Character.toLowerCase(s.charAt(i));
				if (Character.isAlphabetic(ch))
					table[ch - 'a']++;
			}
		}
		for(int i=0;i<26;i++) {
			char ch = (char) ('a' + i);
			System.out.println(ch + " : " + table[ch - 'a']);
		}
	}
}