import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;

public class CountCharsInString1 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String word = String.join("",scanner.nextLine().split(" "));


        Map<Character,Integer> countChar = new LinkedHashMap<>();

        for (int i = 0; i <word.length() ; i++) {
            char letter = word.charAt(i);

                countChar.putIfAbsent(word.charAt(i), 0);
                countChar.put(word.charAt(i), countChar.get(word.charAt(i)) + 1);

        }
//           ПЪРВИ НАЧИН НА ИЗХОД:
//        for (Map.Entry<Character, Integer> wor : countChar.entrySet()) {
//            System.out.println(wor.getKey()+" -> "+ wor.getValue());
//        }

        countChar.entrySet().forEach(e->{
            System.out.println(e.getKey()+" -> "+ e.getValue());
        });

    }
}