import java.io.File;
import java.util.Arrays;
import java.util.Scanner;

public class Main{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		File bin =new File(File.separator+"bin");
		String[] l=bin.list();
		Arrays.sort(l);
		for(int i=0;i<l.length;i++) System.out.println(l[i]);
		sc.close();
	}
}