/*
Pattern 

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*/ 




import java.util.*;
import java.lang.*;
import java.io.*;

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = 1 ;
        for(int i=1 ; i<=n ; i++){
            
            for(int j = 1 ; j<=i ; j++){
                System.out.print(k + " ");
                k++;
            }
            System.out.println();
        }
    }
}