#include <stdio.h>

void main(void)
{
    int nNum, j, i, n, c = 5;
    printf("Please enter integer : ");
    while(scanf("%d", &nNum) != 1 || nNum < 0)
    {
        _flushall();
        printf("Please enter integer : ");
    }
    for(j = 1; j <= nNum; j++)
    {
        if(nNum > 3)
        {
            if(j <= 3)
            {
                for(i = 1; i <= nNum*2 - j*2 + 2; i++)
                    printf(" ");
            }
            else if(j > 3 && j != nNum)
            {
                for(i = 1; i <= nNum*2 - j*2 + 1; i++)
                    printf(" ");
            }
            else
            {
                for(i = 1; i <= nNum*2 - j*2; i++)
                    printf(" ");
            }
        }
        else
        for(i = 1; i <= nNum*2 - j*2; i++)
            printf(" ");

        n = 1;
        for(i = 1; i <= j; i++)
        {
            printf("%d ", n);
            n+= j-1;
        }
        printf("\n");
    }
}