2024 2 24

# a = int(input())
# print('*'*a)
# for i in range(a-2):
#     print('*',' '*(a-2),"*", sep ='')
# print('*'*a)

# a =int(input())
# for i in range(a):
#     for j in range(a):
#         if j == 0 or i == 0 or j == a - 1 or i == a -1 or j == i or j + i == a - 1 :
#             print('*',end ='')
#         else:
#             print(' ',end='')
#     print()

# x +1 % 2

# a =int(input())
# for i in range(a):
#     for j in range(a):
#         if j == 0 or i == 0 or j == a - 1 or i == a -1 or j == i or j + i == a - 1 or j == (a-1)/2 or i == (a-1)/2 :
#             print('*',end ='')
#         else:
#             print(' ',end='')
#     print()

# a = int(input())
# b = a*2
# for i in range(b):
#     for j in range(b):
#         if j + i == a-1 or j - i == a or i - j == a or i + j == 3*a -1:
#             print('*',end ='')
#         else:
#             print(' ',end="")
#     print()


# a =int(input())
# sum = 1
# while sum!= a+1:
#     print('*'*sum)
#     sum = sum + 1
#
# a =int(input())
# while a!= 0:
#     print('*'*a)
#     a = a - 1

# a =int(input())
# sum = 1
# while sum!= a:
#     print('*'*sum)
#     sum = sum+1
# while a!= 0:
#     print('*'*a)
#     a = a - 1

# a = int(input())
# b = a - 1
# while b!= -1:
#     print(' '*b,'*'* a, sep='')
#     b = b - 1