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

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

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

print(S)

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 = sorted(res)
x = res[-1][0]
for r in res:
    if r[0] == x:
        print(r[1])