public static int makingAnagrams(String s1, String s2) {
        
        StringBuilder sb1 = new StringBuilder(s1);
        StringBuilder sb2 = new StringBuilder(s2);
        
        for(int i=0; i<sb1.length(); i++) {
            int index = sb2.indexOf("" + sb1.charAt(i));
            if(index != -1) {
                sb1.deleteCharAt(i);
                sb2.deleteCharAt(index);
                i--;
            }
        }
        return sb1.length() + sb2.length();
    }