baekjoon - python - 2523

https://www.acmicpc.net/problem/2523

2523번: 별 찍기 - 13

# @Author YoungMinKim
# baekjoon

n= int(input())
for i in range(n):
    print('*'*(i+1))
for j in range(n-1,0,-1):
    print('*'*j)