my_list = []
my_list = [1, 's', 3.14]
my_tuple = ()
my_tuple = (1, 2, 3)
my_tuple = 1,
my_tuple = 1, 2, 3
my_set = set()
my_set = set({1, 's', 3.14})
# print(my_set[1]) => 이런 indexing 불가능
my_dict = {}
my_dict = {'c': 3, 3.14: 'e', 4: 5}
print(my_dict[3.14])
print(my_dict['e'])