Hello there, regarding the problem 58A Chat room (link: https://codeforces.com/problemset/problem/58/A) Test case 5 is "helhcludoo" which is giving me WA and it's wrong according to the problem statement.

My code:-

String s = sc.next(); String regex = ".*(h+)(e+)(l+)(l+)(o+).*"; System.out.println(s.matches(regex)?"YES":"NO");

Am I doing something wrong?