回寢之前，秒一波水題！！！

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * 題意：將輸入的字元中所有的"WUB"轉換成" "，如果連續的兩個或者兩個以上"WUB"只需轉換成一個" "。
 *
 * @author
 
 TinyDolphin
 *         2017/7/3 21:25.
 */
public class Main {

    public static void main(String[] args) throws IOException {
        Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
        String[] letters;
        while
 
 (in.hasNext()) {
            letters = in.next().split("WUB");
            for (int index = 0; index < letters.length; index++) {
                if (!letters[index].equals("")) {
                    out.print(letters[index]);
                    out.print(index == letters.length - 1 ? "\n" : " "
 
);
                }
            }
        }
        out.flush();
    }
}