#include<stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    
    for(n<0 || n>10){
    {
        printf("Invalid Input");
    }
    }
    int size=2*n-1;
    
    for(int i=0;i<size;i++)
    {
        for(int j=0;j<size;j++)
        {
            int top =i;
            int left =j;
            int right=size-1-j;
            int bottom=size-1-i;
            int minDist =top;
            if(left <minDist) minDist =left;
            if(right<minDist) minDist=right;
            if(bottom<minDist) minDist=bottom;
            
            printf("%d",n-minDist);
            
        }
        printf("\n");
    }
    
    return 0;
}