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