// editor5
#include<stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    if(n<0 || n>10)
    {
        print("Invalid Input");
        return 0;
    }
    int s=2*n-1;
    for (int i=0;i<s;i++)
    {
        for(int j=0;j<s;j++)
        {
            int t=i;
            int l=j;
            int b = s-1-i;
            int r =s-1-j;
            
            int md=t;
            if(l<md) md =l;
            if(b<md) md =b;
            if(r<md) md =r;
            printf("%d",n=md);
        }
        printf("\n");
    }
    return 0;
}