import java.util.*;
import java.lang.*;
import java.io.*;

class Main {
    public static class BlogTitle {
        private String title;

        public BlogTitle(String title){
            this.title=title;
        }

        public String getTitle(){
            return this.title;
        }
        
        public String getSlug(){
            String s=this.getTitle().toLowerCase().replace(" ","-");
            char[] t= s.toCharArray();
            s="";
            for (char c : t) {
                if (c >= 'a' && c <= 'z' || c == '-')
                    s += c;
            }
            return s;
        }

        @Override
        public boolean equals(Object o){
            if(o instanceof BlogTitle){
                return this.getSlug().equals(((BlogTitle) o).getSlug());
            }
            return false;
        }

        @Override
        public int hashCode(){
            return this.getSlug().hashCode();
        }
    }

    public static void main(String[] args) {
        BlogTitle blogTitle = new BlogTitle("This is my.... ARTICLE!!!");
        System.err.println(blogTitle.getSlug());
        System.out.println(blogTitle.equals(new String[0]));
        System.out.println(blogTitle.equals(new BlogTitle("test")));
        System.out.println(blogTitle.equals(new BlogTitle("This is my.... ARTICLE!!!")));
        System.out.println(blogTitle.equals(new BlogTitle("this-is-my-article")));
        System.out.println(blogTitle.hashCode());
        System.out.println(new BlogTitle("this is my article").hashCode());
        System.out.println(new BlogTitle("a").hashCode());
        System.out.println(new BlogTitle("b").hashCode());

    }
}