a=input()
d=0
h=0
a=a.replace('WUB','1')
j=a.count('1')
while a.count('1')!=0:
a=a.replace('1',' ')
a=a.replace(' ',' ')
for i in range(len(a)):
if a[i]!=' ':
d=i
break
a=a[::-1]
for j in range(len(a)):
if a[j]!=' ':
h=j
break
a=a[::-1]
print(a[d:-h])
YT1pbnB1dCgpCmQ9MApoPTAKYT1hLnJlcGxhY2UoJ1dVQicsJzEnKQpqPWEuY291bnQoJzEnKQp3aGlsZSBhLmNvdW50KCcxJykhPTA6CglhPWEucmVwbGFjZSgnMScsJyAnKQphPWEucmVwbGFjZSgnICAnLCcgJykKZm9yIGkgaW4gcmFuZ2UobGVuKGEpKToKCWlmIGFbaV0hPScgJzoKCQlkPWkKCQlicmVhawphPWFbOjotMV0KZm9yIGogaW4gcmFuZ2UobGVuKGEpKToKCWlmIGFbal0hPScgJzoKCQloPWoKCQlicmVhawphPWFbOjotMV0KcHJpbnQoYVtkOi1oXSk=