#include<stdio.h>
#include<stdlib.h>
int main()
{
    int n;
    scanf("%d",&n);
    if(n<0)
    {
        printf("Invalid Input");
        return 0;
    }
    int size=2*n-1;
    int center=n-1;
    
    for(int i=0;i<size;i++)
    {
        for(int j=0;j<size;j++)
        {
            int dist=abs(i-center)>abs(j-center)? abs(i-center):abs(j-center)
            printf("%d",dist+1);
        }
        printf("\n");
    }
    return 0;
    
}