[Python] 백준 2446번 - 별찍기 9

import sys
num = int(sys.stdin.readline())
# 위쪽 반
for i in range(num):
    stars = num-i-1
    blanks = i
    for j in range(blanks):
        print(" ", end="")
    for m in range(stars*2+1):
        print("*", end="")
    print("")
# 아래쪽 반
for i in range(num-1):
    stars = i+1
    blanks = num-i-2
    for j in range(blanks):
        print(" ", end="")
    for k in range(stars*2+1):
        print("*", end="")
    print("")