__author__ = 'Avinash'


# Python3 program to print alphabet pattern Q

#   * * * * * *
# *             *
# *             *
# *             *
# *             *
# *         *   *
#   * * * * * *
#               *


def print_pattern(n):
    for row in range(n):
        for column in range(n):
            if (
                    # first row
                    (row == 0 and (column != 0 and column != n - 1)) or

                    # last row
                    (row == n - 2 and (column != 0 and column < n - 2)) or

                    # first column
                    (column == 0 and (row != 0 and row < n - 2)) or

                    # last column
                    (column == n - 1 and (row != 0 and row != n - 2)) or

                    # Q Tail
                    ((n // 2 < row < n) and (column > n // 2) and (row == column))
            ):
                print("*", end=" ")
            else:
                print(" ", end=" ")
        print()


size = int(input("Enter any size: \t"))

if size < 8:
    print("Enter a size minumin of 8")
else:
    print_pattern(size)