# the random() function returns a pseudo-
# random number between zero and one
print("a random number between 0.0 and 1.0:")
print(random())

# the randint() function returns a pseudo-
# random integer number in the range you
# specify.
print("a random integer between 0 and 4:")
print(randint(0, 4))
print("a random integer between 10 and 20:")
print(randint(10, 20))

# use a random number to do different
# things.
print("choose randomly between A and B, 6 times:")
for i in range(6):
    if random() > 0.5:
        print("A")
    else:
        print("B")