import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[] count = new int[26];
        for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        }
        while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        }
        for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        }
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[] count = new int[26];
        for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        }
        while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        }
        for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        }
    }
} Main public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[] count = new int[26];
        for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        }
        while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        }
        for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        }
    } main {
        Scanner scanner = new Scanner(System.in);
        int[] count = new int[26];
        for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        }
        while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        }
        for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        }
    } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) int[] count = new int[26]; count new int[26] 26 for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        } int i = 0; int i = 0; i 0 i < count.length i count.length count count.length i++ i++ i {
            count[i] = 0;
        } {
            count[i] = 0;
        } count[i] = 0 count[i] count i 0 while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        } scanner.hasNext() scanner.hasNext scanner {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        } String s = scanner.next().toUpperCase(); s scanner.next().toUpperCase() scanner.next().toUpperCase scanner.next() scanner.next scanner for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            } int i = 0; int i = 0; i 0 i < s.length() i s.length() s.length s i++ i++ i {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            } {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            } char c = s.charAt(i); c s.charAt(i) s.charAt s i if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                } 'A' <= c && c <= 'Z' 'A' <= c 'A' c c <= 'Z' c 'Z' {
                    count[c - 'A']++;
                } count[c - 'A']++ count[c - 'A'] count c - 'A' c 'A' for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        } int i = 0; int i = 0; i 0 i < count.length i count.length count count.length i++ i++ i {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        } {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        } char c = (char)('a' + i); c (char)('a' + i) 'a' i System.out.println(""+c+" : "+count[i]) System.out.println System.out System System.out ""+c+" : "+count[i] " : " ""+c+" : "+count[i] "" c " : " count[i] count i String[] args args public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[] count = new int[26];
        for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        }
        while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        }
        for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        }
    }
} public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[] count = new int[26];
        for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        }
        while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        }
        for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        }
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[] count = new int[26];
        for (int i = 0; i < count.length; i++) {
            count[i] = 0;
        }
        while (scanner.hasNext()) {
            String s = scanner.next().toUpperCase();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if ('A' <= c && c <= 'Z') {
                    count[c - 'A']++;
                }
            }
        }
        for (int i = 0; i < count.length; i++) {
            char c = (char)('a' + i);
            System.out.println(""+c+" : "+count[i]);
        }
    }
}
