# Program to print full pyramid using *
#         *
#       * * *
#     * * * * *
#   * * * * * * *
# * * * * * * * * *

rows = int(input("Enter number of rows: "))

k = 0

for i in range(1, rows + 1):
    for space in range(1, (rows - i) + 1):
        print(end="  ")

    while k != (2 * i - 1):
        print("* ", end="")
        k += 1

    k = 0
    print()
