# in with dictionaries
grades = {"John": 97.6,
"Randall": 80.45,
"Kim": 67.5,
"Linda": 50.2,
"Sarah": 99.2}

## check if the student is in there


## if not there, add them


# sets


# creating sets


## can't put mutable objects inside a set


## but you can mix types


# set methods


## union, intersection, difference

odds = {1,3,5,7,9}
evens = {2,4,6,8,10}
pos_ints = {1,2,3,4,5,6,7,8,9,10}
primes = {2,3,5,7}


# union


# intersection

# difference

# symmetric difference



# if i switched the order, would the answer be different?


'''
Let's write some code to ask two friends their favorite music artists,
and then print out a message telling them which artists they both said they like!
'''
