// Fencepost loops - aka "loop and a half"
// Example:  Print the numbers from 1 to N:
// e.g.
//    1, 2, 3, 4, 5
// where 5 is a number entered by the user

import java.util.*;
public class Fencepost {
	public static void main(String[] args) {
		Scanner console = new Scanner(System.in);
		System.out.print("Enter a number: ");
		int num = console.nextInt();

		if (num>0) {
			System.out.print(1);
		}
		for (int i=2; i<=num; i++) {
			System.out.print(", " + i);
		}
		System.out.println();
	}
}