#include<stdio.h>
int main()
{
    int N,i,j,spaces,character;
    if(scanf("%d",&N)!=1)
    {
        return 1;
    }
    if(N<=0)
    {
        printf("Invalid input");
        return 0;
    }
    for(i=N;i>=1;i--)
    {
        spaces = N-i;
        character = 2*i-1;
        for(j=0;j,spaces;j++)
        {
            printf(" ");
        }
        for(j=0;j<character;j++)
        {
            printf("%d",i);
        }
        printf("\n");
    }
    for(i=2;i<=N;i++)
    {
        spaces=N-i;
        character = 2*i-1;
        for(j=0;j<spaces;j++)
        {
            printf(" ");
        }
        for(j=0;j<spaces;j++)
        {
            printf("%d",i);
        }
        printf("\n");
    }
    return 0;
}