n = [20, 5, 15, 10, 0]
n.sort()
print(n)

s=["Dog","Banana","Cat","Apple"]
s.sort()
print(s)   #['Apple','Banana','Cat','Dog']

n = [40, 10, 30, 20]
n.sort()
print(n)
n.sort(reverse=True)
print(n)
n.sort(reverse=False)
print(n) == > [10, 20, 30, 40