S = input()
count = 0
record = 0
words = []
word = ''
prev_is_w = False
for s in S:
    if s == 'ｗ':
        prev_is_w = True
        count += 1
        if count == record:
            words.append(word)
        elif count > record:
            words = [word]
            record = count
    else:
        if prev_is_w:
            word = ''
            prev_is_w = False
        word = word + s
        count = 0

if words:
    for word in words:
        if word:
            print(word)
else:
    print()