#https://www.facebook.com/lakshay.gulati.5/posts/3439658002768650
# subscribed by Lakshay
public class floyd {

    public static void main(String[] args) {
        int x=1;
        for (int j =1;j<=5;j++){
                for (int i=0;i<j;i++){
                    System.out.print(" "+x);
                    x++;

                    }
                System.out.println();

        }

    }
}