include<stdio.h>

int main() {

int n;
scanf("%d",&n);
int i=0;
int j=0;
int k=0;
int kj=n;
for(i=1;i<=n;i++){
	for(j=kj-1;j>0;j--){
		printf("  ");
	}
	for(k=1;k<=i;k++){
		printf("%d ",k);
	}
	for(k=i-1;k>0;k--){
		printf("%d ",k);
	}
	printf("\n");
	kj--;
}
kj=n-1;
for(i=1;i<=n-1;i++){
	for(j=1;j<=i;j++){
		printf("  ");
	}
	for(k=1;k<=kj;k++){
		printf("%d ",k);
	}
	for(k=kj-1;k>0;k--){
		printf("%d ",k);
	}
	printf("\n");
	kj--;
}
return 0;

}