package stack;

/**
 * @author dx
 * @version 1.0
 * @date 2022年3月30日 12:40
 * @description:
 */
public class MakeGood {
 public String makeGood(String s) {

 StringBuffer sb = new StringBuffer();

 for(char c: s.toCharArray()){

 if(sb.length()>0 && Math.abs(c-sb.charAt(sb.length()-1)) == 32){
 sb.deleteCharAt(sb.length()-1);
 }else {
 sb.append(c);
 }
 }
 return sb.toString();
 }
}