CONTEST_22_Company_Logo.py

#Ques link - https://www.hackerrank.com/contests/int213-contest22-1664892677/challenges/most-commons

import math
import os
import random
import re
import sys
from collections import Counter

class OrderedCounter(Counter):
    pass

if __name__ == '__main__':
    [print(*c) for c in OrderedCounter(sorted(input())).most_common(3)]