#include< stdio.h >
int star (int num)
{

       for (int i = num; i>0; i--){
             for (int j=0; j < i; j++) {
                 printf ("*");
            }
        printf ("₩n");
        }

    for (int i = 1; i <= num; i--){
         for (int j=0; j < i; j++) {
              printf ("*");
         }
    printf ("₩n");
    }
}

int main ()
{
     int num;

     scanf ("%d",&num);
     star (num);
}