Main.java:24: error: method delete in class StringBuilder cannot be applied to given types;
        cur.delete(cur.length()-1);
           ^
  required: int,int
  found:    int
  reason: actual and formal argument lists differ in length
Main.java:29: error: method delete in class StringBuilder cannot be applied to given types;
        cur.delete(cur.length()-1);
           ^
  required: int,int
  found:    int
  reason: actual and formal argument lists differ in length
2 errors