#4MostFrequentWord

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Scanner;

public class MostFrequentWord {

    public static void main(String[] args){

        Scanner scan = new Scanner(System.in);
        String[] input = (scan.nextLine()).split("\\W+");
        HashMap<String , Integer> hashMap = new HashMap<>();
        String tempWord = "";

        for (int i = 0; i < input.length; i++) {
            tempWord = input[i].toLowerCase();
            if (hashMap.containsKey(tempWord)) {
                hashMap.put(tempWord, hashMap.get(tempWord) + 1);
            }
            else {
                hashMap.put(tempWord, 1);
            }
        }

        List<Integer> occurances = new ArrayList<Integer>();
        occurances.addAll(hashMap.values());
        int maxOccurance = Collections.max(occurances);

        List<String> words = new ArrayList<String>();
        words.addAll(hashMap.keySet());

        for (int i = 0; i < occurances.size(); i++) {
            if (occurances.get(i) == maxOccurance) {
                System.out.println(words.get(i) + " -> " + maxOccurance);
            }
        }
    }
}