# 삼각형 만들기
# n = int(input())
# k = 0
# for i in range(n*2-1):
# if i < n:
# k = i
# else:
# k -= 1
# for j in range(k+1):
# print('*', end='')
# print()
# for i in range(n-1):
# for j in range(i+1):
# print('*', end='')
# print()
#
# for i in range(n):
# for j in range(n,i,-1):
# print('*', end='')
# print()
# 삼각형 만들기 5
# n = int(input())
#
# for i in range(n//2+1):
# for j in range(n, i, -1):
# print(' ', end='')
# print()
# for i in range(n//2+1):
# for j in range(n//2+1):
# if i==n-1 or j==n-1:
# print('*', end='')
# elif i== n-1-j:
# print('*', end='')
# print()
# for i in range(n//2+1, n, 1):
# for j in range(i+1):
# print('*', end='')
# print()
# 정답
# n = int(input())
#
# for i in range(n//2+1):
# for j in range(n//2, i, -1):
# print(' ', end='')
# for j in range(2*i+1):
# print('*', end='')
# print()
# 평행사변형
# n = int(input())
#
# for i in range(n):
# for j in range(n-1, i, -1):
# print(' ', end='')
# for j in range(n):
# print('*', end='')
# print()
# 빗금 친 사각형
# n = int(input())
#
# for i in range(n):
# for j in range(n):
# if i==0 or i == n+1:
# print('*', end='')
# if j ==0 or j == n+1:
# print('*', end='')