/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void allCombinations(String s, int i){
		if (i < s.length()){
			// Make a recursive call without removing
			allCombinations(s, i + 1);
 
			if (s.charAt(i) == '%'){
				// Remove character at index i
				String temp = s.substring(0, i) + s.substring(i + 1);
				allCombinations(temp, i);
			}
		}
		else{
			System.out.println(s);
		}
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		allCombinations("AA%0%0%", 0);
	}
}

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