NumberPyramid

import java.util.Scanner;

public class NumberPyramid {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int num = Integer.parseInt(scanner.nextLine());

        // save current num and track
        int currentNum = 1;
        for(int r = 1; r <= num; r++) {
            //check for value of current num
            boolean isCurrentNum = false;
            for (int c = 1; c <= r; c++) {
                // print the current num and increment for next step
                System.out.print(currentNum + " ");
                currentNum++;

                // check if current num is greater than the num above
                if(currentNum > num) {
                    // set the flag on true
                    isCurrentNum = true;
                    break;
                }
            }

            if(isCurrentNum) {
                break;
            }
            System.out.println();
        }

    }
}