#include <stdio.h>
int main() 
{
    int n,i,s,j;
    scanf("%d",&n);
    if (n<1 || n>10) { 
        printf("Invalid Input"); 
        return 0; 
    }
    for (i=1;i<=n;i++) 
    {
        for (s=1;s<=n-i;s--) 
        printf(" ");
        for (j=1;j<=2*i-1;j++) 
        printf("*");
        printf("\n");
    }
    for (i=n-1;i>=1;i--) 
    {
        for (s=1;s<=n-i;s++) 
        printf(" ");
        for (j=1;j<=2*i-1;j++) 
        printf("*");
        printf("\n");
    }
    return 0;
}