# coding: utf-8
S = str(input())

ans = 0
temp = 0
st = 0
while S[st] == "ｗ":
    st += 1
    if st == len(S):
        break
for k in range(st,len(S)):
    if S[k] == "ｗ" and S[k-1] != "ｗ":
        temp = 1
    elif S[k] == S[k-1] == "ｗ":
        temp += 1
    else:
        temp = 0
    ans = max(ans,temp)

if ans == 0:
    print("")
    exit()

kotae = []
S = S[::-1]

if S[0] == "ｗ":
    temp = 1
else:
    temp = 0
for k in range(1,len(S)):
    if S[k] == "ｗ" and S[k-1] == "ｗ":
        temp += 1
    elif S[k] != "ｗ" and S[k-1] == "ｗ" and temp == ans:
        st = k
        ed = k+1
    elif S[k] != "ｗ" and S[k-1] != "ｗ" and temp == ans:
        ed += 1
    elif S[k] == "ｗ" and S[k-1] != "ｗ" and temp == ans:
        kotae.append(S[st:ed])
        temp = 1
    elif S[k] == "ｗ" and S[k-1] != "ｗ":
        temp = 1
if temp == ans and S[len(S)-1] != "ｗ":
    kotae.append(S[st:ed])


kotae = reversed(kotae)
if kotae:
    for words in kotae:
        print(words[::-1])
else:
    print("")