1
s = input()
2
s = 'WUB' + s + 'WUB'
3
 
4
ans = []
5
 
6
for i in range(len(s) - 2):
7
    if s[i:i+3] == 'WUB':
8
        for j in range(i + 3, len(s) - 2):
9
            if s[j:j+3] == 'WUB':
10
                # s[i] s[i+1] s[i+2] == 'WUB'
11
                # s[j] s[j+1] s[j+2] == 'WUB'
12
                
13
                if j > i + 3:
14
                    ans.append(s[i+3:j])
15
                break
16
 
17
print(' '.join(ans))