import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

S = readline().decode().strip()

print(S)
while S.startswith('ｗ'):
    S = S[1:]


cans = []
is_w = False
t = ""
for s in S:
    if s == 'ｗ':
        is_w = True
    elif is_w and s != 'ｗ':
        cans.append(t)
        is_w = False
        t = ""
    t += s

cans.append(t)

res = []
for can in cans:
    cnt = can.count('ｗ')
    res.append([cnt, can.replace('ｗ', '')])

res.sort(key=lambda x: int(x[0]))
x = res[-1][0]
if x == 0:
    print()
else:
    for r in res:
        if r[0] == x:
            print(r[1])