#include<stdio.h>
#include<math.h>
int main(void)
{
int i,j,n;
scanf("%d",&n);
for(i=1-n;i<=n-1;i++)
{
for(j=0;j<fabs(i);j++)
{
printf(" ");
}
printf("%d",n-fabs(i));
for(j=2*(n-fabs(i)-1)-1;j>0;j--)
{
printf(" ");
}
if(fabs(i)!=n-1)
printf("%d",n-fabs(i));


printf("\n");
}
return 0;
}