public static String biggerIsGreater(String w) {
    // Write your code here
    boolean change = false;
    int indexfirstchangeparam = -1;
            int indexsecondchangeparam = 0;
        for (int i = w.length() - 1; i > 0; i--) {
            for (int j = i - 1; j > indexfirstchangeparam ; j--) {
                if (w.charAt(i) > w.charAt(j)) {
                    change = true;
                    indexfirstchangeparam =j;
                    indexsecondchangeparam = i;
                    break;
                }
            }
        }
                    
            if (change) {
                w = w.substring(0, indexfirstchangeparam) + w.charAt(indexsecondchangeparam) + w.substring(indexfirstchangeparam+1,indexsecondchangeparam) + w.charAt(indexfirstchangeparam) + w.substring(indexsecondchangeparam+1,w.length()); 
                for (int k = indexfirstchangeparam + 1; k < w.length(); k++) {
                    int indexmin = k;
                    
                    for (int h = k ; h < w.length(); h++) {
                        if (w.charAt(h) < w.charAt(indexmin)) {
                            indexmin = h;
                        }
                    }
                    if (indexmin > k){
                        w = w.substring(0, k) + w.charAt(indexmin) + w.substring(k+1,indexmin) + w.charAt(k) + w.substring(indexmin+1,w.length());
                    }
                }
            }
    if (change) {
        return w;
    } else {
        return "no answer";
    }
    }

}