public static String superReducedString(String s) {
    // Write your code here
        Stack<Character> stack = new Stack(); 
        char[] chars = s.toCharArray(); 
        for(char c: chars){
            if(!stack.isEmpty() && c == stack.peek()){
                stack.pop();
            }else{
                stack.push(c);
            }
        }
        
        StringBuilder result = new StringBuilder(); 
        
        while(!stack.isEmpty()){
            result.insert(0,stack.pop());
            System.out.println(result);
        }
        
        if(result.length()==0){
            return "Empty String";
        }
        return result.toString(); 
        
    }