NumberPyramid

import java.util.Scanner;

/**
 * Created by Jo on 2/22/2017.
 */
public class NumberPyramid {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        int number = Integer.parseInt(console.nextLine());
        int outputNumber = 1;

        for (int i = 1; i <= number; i++) {
            for (int j = 1; j <= i; j++) {
                if (outputNumber <= number) {
                    System.out.print(outputNumber + " ");
                    outputNumber++;
                } else {
                    break;
                }
            }
            if (outputNumber <= number) {
                System.out.println();
            } else {
                break;
            }
        }
    }
}