
import java.util.*;
class Main {
	public static void main(String...args) {
		Scanner scan = new Scanner(System.in);
		Map<Character , Integer >strs = new HashMap<>();
		
		for(int i = 97; i <= 122; i++) {
			strs.put((char)i,0);
		}
		//input
		while(scan.hasNext()) {
		    String str = scan.nextLine();
		    str = str.toLowerCase().replaceAll(" ","");
		    char[] str2 = str.toCharArray();
		    for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    }
		}
		//output
	    for(int i = 97; i <= 122 ; i++) {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		}
	}
}
		
		 import java.util.*; util.* java class Main {
	public static void main(String...args) {
		Scanner scan = new Scanner(System.in);
		Map<Character , Integer >strs = new HashMap<>();
		
		for(int i = 97; i <= 122; i++) {
			strs.put((char)i,0);
		}
		//input
		while(scan.hasNext()) {
		    String str = scan.nextLine();
		    str = str.toLowerCase().replaceAll(" ","");
		    char[] str2 = str.toCharArray();
		    for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    }
		}
		//output
	    for(int i = 97; i <= 122 ; i++) {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		}
	}
} Main public static void main(String...args) {
		Scanner scan = new Scanner(System.in);
		Map<Character , Integer >strs = new HashMap<>();
		
		for(int i = 97; i <= 122; i++) {
			strs.put((char)i,0);
		}
		//input
		while(scan.hasNext()) {
		    String str = scan.nextLine();
		    str = str.toLowerCase().replaceAll(" ","");
		    char[] str2 = str.toCharArray();
		    for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    }
		}
		//output
	    for(int i = 97; i <= 122 ; i++) {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		}
	} main {
		Scanner scan = new Scanner(System.in);
		Map<Character , Integer >strs = new HashMap<>();
		
		for(int i = 97; i <= 122; i++) {
			strs.put((char)i,0);
		}
		//input
		while(scan.hasNext()) {
		    String str = scan.nextLine();
		    str = str.toLowerCase().replaceAll(" ","");
		    char[] str2 = str.toCharArray();
		    for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    }
		}
		//output
	    for(int i = 97; i <= 122 ; i++) {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		}
	} Scanner scan = new Scanner(System.in); scan new Scanner(System.in) Map<Character , Integer >strs = new HashMap<>(); strs new HashMap<>() for(int i = 97; i <= 122; i++) {
			strs.put((char)i,0);
		} int i = 97; int i = 97; i 97 i <= 122 i 122 i++ i++ i {
			strs.put((char)i,0);
		} {
			strs.put((char)i,0);
		} strs.put((char)i,0) strs.put strs (char)i 0 while(scan.hasNext()) {
		    String str = scan.nextLine();
		    str = str.toLowerCase().replaceAll(" ","");
		    char[] str2 = str.toCharArray();
		    for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    }
		} scan.hasNext() scan.hasNext scan {
		    String str = scan.nextLine();
		    str = str.toLowerCase().replaceAll(" ","");
		    char[] str2 = str.toCharArray();
		    for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    }
		} String str = scan.nextLine(); str scan.nextLine() scan.nextLine scan str = str.toLowerCase().replaceAll(" ","") str str.toLowerCase().replaceAll(" ","") str.toLowerCase().replaceAll str.toLowerCase() str.toLowerCase str " " "" char[] str2 = str.toCharArray(); str2 str.toCharArray() str.toCharArray str for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    } int i = 0; int i = 0; i 0 i < str2.length i str2.length str2 str2.length i++ i++ i {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    } {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    } if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        } str2[i] > 96 && str2[i] < 123 str2[i] > 96 str2[i] str2 i 96 str2[i] < 123 str2[i] str2 i 123 {
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        } int	count = strs.get(str2[i]); count strs.get(str2[i]) strs.get strs str2[i] str2 i strs.put(str2[i],++count) strs.put strs str2[i] str2 i ++count count for(int i = 97; i <= 122 ; i++) {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		} int i = 97; int i = 97; i 97 i <= 122 i 122 i++ i++ i {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		} {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		} System.out.println((char)i + " : " + strs.get((char)i)) System.out.println System.out System System.out (char)i + " : " + strs.get((char)i) (char)i + " : " + strs.get((char)i) (char)i " : " strs.get((char)i) strs.get strs (char)i String...args args

import java.util.*;
class Main {
	public static void main(String...args) {
		Scanner scan = new Scanner(System.in);
		Map<Character , Integer >strs = new HashMap<>();
		
		for(int i = 97; i <= 122; i++) {
			strs.put((char)i,0);
		}
		//input
		while(scan.hasNext()) {
		    String str = scan.nextLine();
		    str = str.toLowerCase().replaceAll(" ","");
		    char[] str2 = str.toCharArray();
		    for(int i = 0; i < str2.length; i++) {
		        if(str2[i] > 96 && str2[i] < 123){
		            int	count = strs.get(str2[i]);
		            strs.put(str2[i],++count);
		        }
		    }
		}
		//output
	    for(int i = 97; i <= 122 ; i++) {
		System.out.println((char)i + " : " + strs.get((char)i)); 
		}
	}
}
		
		
