import java.util.*;
class Main{
public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int i,j;
        int[] count=new int[26];
        String sentence=" ";
        char basic_c[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
        while(sc.hasNext()){
        sentence+=sc.nextLine();
        }
        sentence = sentence.toLowerCase();
        for(i=0; i < sentence.length(); i++){
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } 
        for(j = 0; j < basic_c.length; j++){
             System.out.println(basic_c[j]+" : "+count[j]);
        } 
    }
} import java.util.*; util.* java class Main{
public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int i,j;
        int[] count=new int[26];
        String sentence=" ";
        char basic_c[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
        while(sc.hasNext()){
        sentence+=sc.nextLine();
        }
        sentence = sentence.toLowerCase();
        for(i=0; i < sentence.length(); i++){
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } 
        for(j = 0; j < basic_c.length; j++){
             System.out.println(basic_c[j]+" : "+count[j]);
        } 
    }
} Main public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int i,j;
        int[] count=new int[26];
        String sentence=" ";
        char basic_c[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
        while(sc.hasNext()){
        sentence+=sc.nextLine();
        }
        sentence = sentence.toLowerCase();
        for(i=0; i < sentence.length(); i++){
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } 
        for(j = 0; j < basic_c.length; j++){
             System.out.println(basic_c[j]+" : "+count[j]);
        } 
    } main {
        Scanner sc=new Scanner(System.in);
        int i,j;
        int[] count=new int[26];
        String sentence=" ";
        char basic_c[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
        while(sc.hasNext()){
        sentence+=sc.nextLine();
        }
        sentence = sentence.toLowerCase();
        for(i=0; i < sentence.length(); i++){
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } 
        for(j = 0; j < basic_c.length; j++){
             System.out.println(basic_c[j]+" : "+count[j]);
        } 
    } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int i i j; j int[] count=new int[26]; count new int[26] 26 String sentence=" "; sentence " " char basic_c[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'}; basic_c {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'} 'a' 'b' 'c' 'd' 'e' 'f' 'g' 'h' 'i' 'j' 'k' 'l' 'm' 'n' 'o' 'p' 'q' 'r' 's' 't' 'u' 'v' 'w' 'x' 'y' 'z' while(sc.hasNext()){
        sentence+=sc.nextLine();
        } sc.hasNext() sc.hasNext sc {
        sentence+=sc.nextLine();
        } sentence+=sc.nextLine() sentence sc.nextLine() sc.nextLine sc sentence = sentence.toLowerCase() sentence sentence.toLowerCase() sentence.toLowerCase sentence for(i=0; i < sentence.length(); i++){
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } i=0; i=0 i 0 i < sentence.length() i sentence.length() sentence.length sentence i++ i++ i {
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } {
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            } j = 0; j = 0 j 0 j < basic_c.length j basic_c.length basic_c basic_c.length j++ j++ j {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            } {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            } if (sentence.charAt(i)==basic_c[j])
                    count[j]++; sentence.charAt(i)==basic_c[j] sentence.charAt(i) sentence.charAt sentence i basic_c[j] basic_c j count[j]++ count[j] count j for(j = 0; j < basic_c.length; j++){
             System.out.println(basic_c[j]+" : "+count[j]);
        } j = 0; j = 0 j 0 j < basic_c.length j basic_c.length basic_c basic_c.length j++ j++ j {
             System.out.println(basic_c[j]+" : "+count[j]);
        } {
             System.out.println(basic_c[j]+" : "+count[j]);
        } System.out.println(basic_c[j]+" : "+count[j]) System.out.println System.out System System.out basic_c[j]+" : "+count[j] basic_c[j]+" : "+count[j] basic_c[j] basic_c j " : " count[j] count j String[] args args
import java.util.*;
class Main{
public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int i,j;
        int[] count=new int[26];
        String sentence=" ";
        char basic_c[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
        while(sc.hasNext()){
        sentence+=sc.nextLine();
        }
        sentence = sentence.toLowerCase();
        for(i=0; i < sentence.length(); i++){
            for (j = 0; j < basic_c.length; j++) {
                if (sentence.charAt(i)==basic_c[j])
                    count[j]++;
            }
        } 
        for(j = 0; j < basic_c.length; j++){
             System.out.println(basic_c[j]+" : "+count[j]);
        } 
    }
}
