import java.util.*;

public class Main {
	public static void main (String[] args) {
    	Scanner sc = new Scanner(System.in);
    	int n = sc.nextInt();
    	StringBuilder sb = new StringBuilder();
    	for (int i = 0; i < n; i++) {
    	    for (int j = 0; j < n; j++) {
    	        if (j > 0) {
    	            sb.append(" ");
    	        }
    	        sb.append((2 * i - j + n) % n + 1);
    	    }
    	    sb.append("\n");
    	}
    	System.out.print(sb);
    }
}