#include<stdio.h>
int main()
{
	int n,i,j;
	scanf("%d",&n);
	int a[n][n];
	for(i=0;i<n;i++){
		for(j=0;j<n;j++){
			a[i][j]=0;
			if(i+j==n-1){
				a[i][j]=1;
			}
			
		}
	}
	for(i=0;i<n;i++){
		for(j=0;j<n;j++){
			printf("%3d",a[i][j]);
		}
		printf("\n");
	} 
return 0;
}








/**************************************************************
	Problem: 1191
	User: admin
	Language: C
	Result: Accepted
	Time:11 ms
	Memory:1144 kb
****************************************************************/