#include <stdio.h>

int main()
{
    int a = 1, num, space;
    printf("Enter the number of Rows \n");
    scanf("%d", &num);
    space = num - 1;
    while (space != 0)
    {
        printf(" ");
        space--;
    }
    printf("%d \n", a);
    space = num - 2;
    for (int i = 1; i < num; i++)
    {
        a = 1;
        for (int k = 1; k <= space; k++)
        {
            printf(" ");
        }
        for (int j = 0; j <= i * 2; j++)
        {
            if (j < i)
            {
                printf("%d", a);
                a++;
            }
            else
            {
                printf("%d", a);
                a--;
            }
        }
        printf("\n");
        space--;
    }
    for (int i = num - 1; i >= 1; i--)
    {
        space = num - i;
        a = 1;
        for (int k = 1; k <= space; k++)
        {
            printf(" ");
        }
        for (int j = 1; j <= i * 2 - 1; j++)
        {
            if (j < i)
            {
                printf("%d", a);
                a++;
            }
            else
            {
                printf("%d", a);
                a--;
            }
        }
        printf("\n");
        space--;
    }
    return 0;
}