__author__ = 'Avinash'


# Python3 program to print alphabet pattern L

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

def print_pattern(n):
    for row in range(n):
        for column in range(n):
            # first column
            if (column == 0 or
                    # last row
                    row == n - 1):
                print("* ", end="")
            else:
                print(" ", end="")
        print()


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

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