import java.util.*;
public class InvertedNumberTriangle{
public static void main(String args[]){
Scanner sc = new Scanner(System.in);
System.out.println("Enter no of lines");
int n = sc.nextInt();
for(int i=0; i<=n;i++){
for(int j=1;j<=n-i;j++){
System.out.print(j+" ");
}
System.out.println();
}
}
}