# print('%2d-%02d' % (3, 1))
# print('%.2f' % 3.1415926)
# s1 = 72
# s2 = 85
# r=s1/100*(s2-s1)
# print("小明的成绩提高了%.2f %%" % r)
# # L = [
# # ['Apple', 'Google', 'Microsoft'],
# # ['Java', 'Python', 'Ruby', 'PHP'],
# # ['Adam', 'Bart', 'Lisa']
# # ]
# # print(L[2][2])
# height = 1.75
# weight = 80.5
# bmi=weight/(height*height)
# if bmi<18.5:
# print("过轻")
# elif 25>bmi>=18.5:
# print("正常")
# elif 28>bmi>=25:
# print("过重")
# elif 32>bmi>=25:
# print("肥胖")
# elif bmi>32:
# print("严重肥胖")
# else:
# pass
# L = ['Bart', 'Lisa', 'Adam']
# sum = 0
# for x in L:
# print("HELLO"+",",x+"!")
# n=1
# while n<101:
# if n==10:
# continue
# print(n)
# print('end')
s = set([1, 2, 3])
print(s)