# 8.3:  Write a function with one argument and two return values.

# Define function 'double_and_halve' that takes one numeric argument, and returns the value doubled
# as well as halved.  Note:  you must not use 'a' or 'b' inside the function, and you must not print
# inside the function - values must be returned

# your function def here

a = 50

d, h = double_and_halve(a)

print(d)                # 100
print(h)                # 25.0

# Expected Output:

# 100
# 25.0

