#include <stdio.h>

int main()
{
    int n;
    scanf("%d", &n);
    {
        printf("Invalid Input");

    }
    for (int i = 1; i <= n; i++)
    {
        for (int s = 1; s <= n - i; s++)
        {
            printf(" "); 
        }
        for (int j = 1; j <= i; j++)
        {
            printf("*");
        }
        printf("\n")
    }


    for (int i = n - 1; i >= 1; i--)
    {
        for (int s = 1; s <= n - i; s++) 
        {
            printf(" ");  
        }
        for (int j = 1; j <= i; j++) 
        {
            printf("*");
        }
        printf("\n");
    }
    return 0;
}