# 进度条

# import time

# lenth = 50  

# print("开始执行".center(40,'.'))
# start = time.perf_counter()
# for i in range(lenth+1):
# 	part1 = "*" * i
# 	part2 = "." * (lenth-i)
# 	completePersent = i / lenth * 100
# 	execTime = time.perf_counter()
# 	print("\r{:^3.0f}%[{}{}]{:.2f}s".format(completePersent, part1, part2,execTime-start), end='')
# 	time.sleep(0.1)
# print("\n"+'结束任务'.center(40,'.'))

# scale = 50
# print("执行开始".center(scale//2,'-'))
# start = time.perf_counter()
# for i in range(scale+1):
#     a = '*' * i
#     b = '.' * (scale - i)
#     c = (i/scale)*100
#     dur = time.perf_counter() - start
#     print("\r{:^3.0f}%[{}{}]{:.2f}s".format(c,a,b,dur),end='')
#     time.sleep(0.1)
# print("\n"+"执行结束".center(scale//2,'-'))


# a = 1111.23412356789

# print("{:-^20}".format(pow(a,3)))

# a = 3
# for i in range(1,a+1,2):
# 	print("{:^{}}".format(i*'*', a))

words = "abcdefghijklmnopqrstuvwxyz"
secret = "defghijklmnopqrstuvwxyzabc"

input_word = "python is good"

# for i in input_word:
# 	if i in words:
# 		print(secret[words.index(i)], end='')
# 	else:
# 		print(i,end="")
# print()

print(ord('a'))
print(ord('d'))
print(ord('z'))

print(pow(-1,0.5))