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