name = ["aa","bb","cc","dd","ee","ff","gg","hh","ii"]

print(name[3])

num = [1,2,3,4,56,7,7,8]

print(num[2])

abc = []

num[2] = 5

print(num)

print(21 in num)

num.append(69)
print(num)

print(len(num))
num.insert(0,00)
print(num)

print(num.index(56))

