package no3010;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try {
			Process pr = Runtime.getRuntime().exec("ls ~/bin");
			Scanner sc = new Scanner(pr.getInputStream());
			ArrayList<String> lis = new ArrayList<>();
			while(sc.hasNext()) {
				String s = sc.next();
				if (s.startsWith(".")) {
					continue;
				}
				lis.add(s);
			}
			Collections.sort(lis);
			for(String s: lis) {
				System.out.println(s);
			}
		}catch (Exception e) {
			System.out.println("分からず");
		}
	}

}