Worm Ipsum 1

dot = "."
is_valid = False
most_occurring_symbol = ""
mos_counter = 1  #Most Occurring Symbol (mos) counter
curr_word = ""
final = []

data = input()

while not data == "Worm Ipsum":
    if data.count(dot) == 1 and data[-1] == dot and data[0].isupper():
        is_valid = True

    if is_valid:
        list_of_words = data.split(" ")
        #ITERRATING OVER WORDS & SYMBOLS IN WORDS
        for word in list_of_words:
            for symbol in word:
                symbol_count = word.count(symbol)
                if symbol_count > mos_counter:
                    most_occurring_symbol = symbol
                    mos_counter = symbol_count

            if not most_occurring_symbol == "":
                if word[-1] == dot:
                    curr_word = (len(word)-1) * most_occurring_symbol + word[-1]
                else:
                    curr_word = len(word) * most_occurring_symbol
                final.append(curr_word)
            else:
                final.append(word)
            #RESET COUNTER & MOS SYMBOL
            most_occurring_symbol = ""
            mos_counter = 1
        print(' '.join(final))
        #RESET LIST FOR NEXT WORD
        final = []
        is_valid = False
    data = input()