#include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int i, count = 0;     string str;     cin >> str;     int len = str.size();     for (i = 0; i < len; i++) {       if (str[i] ==  W  && str[i + 1] ==  U  && str[i + 2] ==  B ) {         i += 2;         if (count > 0) cout <<    ;       } else {         cout << str[i];         count = 1;       }     }     return 0;   }   