list1=[]
print(list1)

list2=[1,2,3,4,5]
print(list2)

print(list2[0])
print(list2[1])
print(list2[len(list2)-1])

list2.append(99)
list2.insert(0, 88)
print(list2)

list2.pop(0)
list2.pop(len(list2)-1)
print(list2)

list2[2] = 99
print(list2)