import java.util.Iterator;
public class Palindrome implements Iterable<String>{
    private StringBuilder s;

    public Palindrome(StringBuilder s){
        this s. = s;
    }

    public Iterator<String> iterator() {
        return new  Palindrome();
    }

    public class PalindromeIterator implements Iterable<String>{
        private int pos;

        public PalindromeIterator(){
            pos = 0;
        }

        public boolaen hasNext(){
             return pos < s.lenght();
        }

        public String next() {
            return s.substring(pos++, les.lenght());
        }
    }
}