/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
   public static void main (String[] args) throws java.lang.Exception
   {
      // your code goes here
      Scanner sc = new Scanner(System.in);
      String input = sc.nextLine();
 
      // 쉼표(,) 기준으로 split
        String[] elements = input.split(",");
 
        // 문자의 개수를 셀 Map
        Map<String, Integer> charCount = new HashMap<>();
 
        // 배열을 순회하며 개수 세기
        for (String element : elements) {
            charCount.put(element, charCount.getOrDefault(element, 0) + 1);
        }
 
        // 결과 출력
        for (Map.Entry<String, Integer> entry : charCount.entrySet()) {
            System.out.println(entry.getKey() + " : " + entry.getValue() + "개");
        }
 
      sc.close();
   }
}

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