""" Fill in the functions with the proper operators needed.
You can test the code afterwards by calling the functions, see below.
 """

def one(x, y, z):
    """ Return the result of adding all 3 vars together """
    return # ADD CODE HERE

def two(x, y, z):
    """ Return the result of adding the first 2 vars
    and multiplying by the third """
    return # ADD CODE HERE

def three(a, b, c, d):
    """ Return the result of multiplying the first two
    then dividing by the modulo of the last two"""
    return # ADD CODE HERE

def four(x):
    """ Return 'welcome ' repeated x times """
    return # ADD CODE HERE

def five(x, y):
    """ Return True if the string y is in
    the string x; otherwise, False """
    return # ADD CODE HERE

def six(x):
    """ Return True if x is even, otherwise False """
    return # ADD CODE HERE

def seven(x):
    """ Return the negative cube of x """
    return # ADD CODE HERE

def eight(x):
    """ Return x * 8 using the shift operators only """
    return # ADD CODE HERE

def nine(x, y, z):
    """ Return the bitwise or of the bitwise and of x and y with the inversion of z """
    return # ADD CODE HERE


# Example testing
x = one(1, 5, 9) # This should give me 15
print(x)

print(two(2, 3, 4)) # This should give me 20

# I am showing two ways by either saving the output of a function
# or directly passing it to the print statement (what we want to end up doing)