import java.util.*;

public class firstname {
    static public Scanner input = new Scanner(System.in);
    static public LinkedList<String> fname;

    public firstname() {
    }

    /**
     * @category Write a program that reads in a series of first names and
     *           stores them in a LinkedList. Do not store duplicate names.
     *           Allow the user to search for a first name.
     * 
     */
    static String temp;

    public static void main(String args[]) {
        fname = new LinkedList<String>();
        while (input.hasNext()) {
            temp = input.next();
            for (int i = 0; i < fname.size(); i++) {
                if (temp.equals(fname.get(i)))
                    continue;

            }
            fname.add(temp);
        }
        System.out.println("输入要找的名字");
        //input.next();
        temp = input.next();
        temp = input.next();
        for (int i = 0; i < fname.size(); i++) {
            if (temp.equals(fname.get(i)))
                System.out.printf("The index of %s is %d!", fname.get(i), i);
        }
    }
}