View Code of Problem 97

import java.util.*;

public class Main {
    public static void main(String[] args) {
        char e = 'e';
        char x = 'x';
        char c;
        Scanner scanner = new Scanner(System.in);
        HashMap<String, Integer> hash = new HashMap<String, Integer>();
        StringBuilder sb = new StringBuilder();
        while (scanner.hasNext()) {
            Integer get = Integer.valueOf(scanner.nextLine());
            if (get == 0) {
                break;
            }
            String[] list = new String[get];
            for (int i = 0; i < get; i++) {
                list[i] = scanner.nextLine();
            }
            Arrays.sort(list);
            for (int i = 0; i < get - 1; i++) {
                if ((list[i] + ".exe").equals(list[i + 1])) {
                    System.out.println(list[i+1]);
                }
            }
        }
        System.out.println(sb.toString());
    }
}