import java.util.Scanner;


public class Main{
    public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            char[] ch = new char[1200];
            int n = 0;
            while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            }
            int[] al = new int[26];
            for(int j = 0; j < 26; j++){
                al[j] = 0;
            }
            for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            }
            for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            }
            scanner.close();
        
    }
} import java.util.Scanner; Scanner java.util public class Main{
    public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            char[] ch = new char[1200];
            int n = 0;
            while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            }
            int[] al = new int[26];
            for(int j = 0; j < 26; j++){
                al[j] = 0;
            }
            for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            }
            for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            }
            scanner.close();
        
    }
} Main public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            char[] ch = new char[1200];
            int n = 0;
            while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            }
            int[] al = new int[26];
            for(int j = 0; j < 26; j++){
                al[j] = 0;
            }
            for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            }
            for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            }
            scanner.close();
        
    } main {
            Scanner scanner = new Scanner(System.in);
            char[] ch = new char[1200];
            int n = 0;
            while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            }
            int[] al = new int[26];
            for(int j = 0; j < 26; j++){
                al[j] = 0;
            }
            for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            }
            for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            }
            scanner.close();
        
    } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) char[] ch = new char[1200]; ch new char[1200] 1200 int n = 0; n 0 while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            } scanner.hasNextLine() scanner.hasNextLine scanner {
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            } String line = scanner.nextLine(); line scanner.nextLine() scanner.nextLine scanner line = line.toLowerCase() line line.toLowerCase() line.toLowerCase line for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                } int i = 0; int i = 0; i 0 i < line.length() i line.length() line.length line i++ i++ i {
                    ch[i + n] = line.charAt(i);
                } {
                    ch[i + n] = line.charAt(i);
                } ch[i + n] = line.charAt(i) ch[i + n] ch i + n i n line.charAt(i) line.charAt line i n += line.length() n line.length() line.length line int[] al = new int[26]; al new int[26] 26 for(int j = 0; j < 26; j++){
                al[j] = 0;
            } int j = 0; int j = 0; j 0 j < 26 j 26 j++ j++ j {
                al[j] = 0;
            } {
                al[j] = 0;
            } al[j] = 0 al[j] al j 0 for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            } int j =0; int j =0; j 0 j < n j n j++ j++ j {
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            } {
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            } for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                } int k = 0; int k = 0; k 0 k < 26 k 26 k++ k++ k {
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                } {
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                } if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    } (int)ch[j] - (k + 97) == 0 (int)ch[j] - (k + 97) (int)ch[j] ch j (k + 97) k 97 0 {
                        al[k] ++;
                    } al[k] ++ al[k] al k for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            } int j = 0; int j = 0; j 0 j < 26 j 26 j++ j++ j {
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            } {
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            } System.out.printf("%c : %d\n",(97 + j),al[j]) System.out.printf System.out System System.out "%c : %d\n" (97 + j) 97 j al[j] al j scanner.close() scanner.close scanner String[] args args public class Main{
    public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            char[] ch = new char[1200];
            int n = 0;
            while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            }
            int[] al = new int[26];
            for(int j = 0; j < 26; j++){
                al[j] = 0;
            }
            for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            }
            for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            }
            scanner.close();
        
    }
} public class Main{
    public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            char[] ch = new char[1200];
            int n = 0;
            while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            }
            int[] al = new int[26];
            for(int j = 0; j < 26; j++){
                al[j] = 0;
            }
            for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            }
            for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            }
            scanner.close();
        
    }
} Main
import java.util.Scanner;


public class Main{
    public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            char[] ch = new char[1200];
            int n = 0;
            while(scanner.hasNextLine()){
                String line = scanner.nextLine();
                line = line.toLowerCase();
                for(int i = 0; i < line.length(); i++){
                    ch[i + n] = line.charAt(i);
                }
                n += line.length(); 
            }
            int[] al = new int[26];
            for(int j = 0; j < 26; j++){
                al[j] = 0;
            }
            for(int j =0; j < n; j++){
                for(int k = 0; k < 26;k++){
                    if((int)ch[j] - (k + 97) == 0){
                        al[k] ++;
                    }
                }
            }
            for(int j = 0; j < 26; j++){
                System.out.printf("%c : %d\n",(97 + j),al[j]);
            }
            scanner.close();
        
    }
}
