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