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