#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 < space; j++) {
            printf(" ");
            
        }
        for (int j = 0; j < i; j++) {
            printf("*");
        }
            printf("\n");
    }
    
    return 0;
}