S = input().strip()
wmax = 0
cnt = 0
for i in range(len(S)):
    if S[i]=="ｗ":
        cnt += 1
        wmax = max(wmax,cnt)
    else:
        cnt = 0
if wmax==0 or wmax==len(S):
    print("")
else:
    ans = []
    cnt = 0
    x = ""
    for i in range(len(S)):
        if S[i]=="ｗ":
            cnt += 1
            if cnt==wmax:
                ans.append(x)
        else:
            if cnt>0:
                x = S[i]
                cnt = 0
            else:
                x += S[i]
    for x in ans:
        if x=="":continue
        print(x)