/*
 * Warmup Contest #1, September 1, 2010 Problem B
 * Solution by Tom Conerly
 * Originally from http://contest.felk.cvut.cz/07cerc/solved/train/b.pdf
 * CERC 2008 Practice Session Problem B
 * 
 * The one weird cause is "BBUGUG" which should return "".
 */

import java.util.*;

public class B {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		while(sc.hasNextLine()){
			String line = sc.nextLine();
			while(line.indexOf("BUG") != -1){
				int index = line.indexOf("BUG");				
				line= line.substring(0, index)+line.substring(index+3);
			}
			System.out.println(line);
		}
	}

}