def math as imported("imports/math")

math.variable = "Marcelo"

print("add(10, 12)      = {{math.add(10, 12)}}")
print("subtract(12, 10) = {{math.subtract(12, 10)}}")
print("divide(12, 3)    = {{math.divide(12, 3)}}")
print("multiply(10, 12) = {{math.multiply(10, 12)}}")
print("is_even(12)      = {{math.is_even(12)}}")
print("parity(13)       = {{math.parity(13)}}")
print("variable         = {{math.variable}}")

assert(math.add(10, 12) == 22)
assert(math.subtract(12, 10) == 2)
assert(math.divide(12, 3) == 4.0)
assert(math.multiply(10, 12) == 120)
assert(math.is_even(12) == true)
assert(math.parity(13) == "odd")
assert(math.variable == "Marcelo")
print("all assertions passed")
