import java.util.Scanner;

public class Main{
 public static void main(String[] args){
 Scanner sc = new Scanner(System.in);
 int[] chars = new int[256];
 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
}
 for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  }
 }
} import java.util.Scanner; Scanner java.util public class Main{
 public static void main(String[] args){
 Scanner sc = new Scanner(System.in);
 int[] chars = new int[256];
 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
}
 for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  }
 }
} Main public static void main(String[] args){
 Scanner sc = new Scanner(System.in);
 int[] chars = new int[256];
 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
}
 for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  }
 } main {
 Scanner sc = new Scanner(System.in);
 int[] chars = new int[256];
 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
}
 for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  }
 } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int[] chars = new int[256]; chars new int[256] 256 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
} sc.hasNextLine() sc.hasNextLine sc {
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
} String line= sc.nextLine(); line sc.nextLine() sc.nextLine sc for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 } int i=0; int i=0; i 0 i<line.length() i line.length() line.length line i++ i++ i {
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 } {
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 } char ch =Character.toLowerCase(line.charAt(i)); ch Character.toLowerCase(line.charAt(i)) Character.toLowerCase Character line.charAt(i) line.charAt line i for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  } char search ='a'; char search ='a'; search 'a' search<='z' search 'z' search++ search++ search {
  if(search == ch){
   chars[search]++;
   }
  } {
  if(search == ch){
   chars[search]++;
   }
  } if(search == ch){
   chars[search]++;
   } search == ch search ch {
   chars[search]++;
   } chars[search]++ chars[search] chars search for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  } char ch ='a'; char ch ='a'; ch 'a' ch<='z' ch 'z' ch++ ch++ ch {
 System.out.println(ch +" : "+ chars[ch]);
  } {
 System.out.println(ch +" : "+ chars[ch]);
  } System.out.println(ch +" : "+ chars[ch]) System.out.println System.out System System.out ch +" : "+ chars[ch] ch +" : "+ chars[ch] ch " : " chars[ch] chars ch String[] args args public class Main{
 public static void main(String[] args){
 Scanner sc = new Scanner(System.in);
 int[] chars = new int[256];
 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
}
 for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  }
 }
} public class Main{
 public static void main(String[] args){
 Scanner sc = new Scanner(System.in);
 int[] chars = new int[256];
 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
}
 for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  }
 }
} Main
import java.util.Scanner;

public class Main{
 public static void main(String[] args){
 Scanner sc = new Scanner(System.in);
 int[] chars = new int[256];
 while(sc.hasNextLine()){
 String line= sc.nextLine();
 for(int i=0;i<line.length();i++){
 char ch =Character.toLowerCase(line.charAt(i));
 for(char search ='a';search<='z';search++){
  if(search == ch){
   chars[search]++;
   }
  }
 }
}
 for(char ch ='a';ch<='z';ch++){
 System.out.println(ch +" : "+ chars[ch]);
  }
 }
}