#great_directors
great_directors = ["martin scorsese", "steven spielberg", "francis ford coppola"]
great_directors[1] = "micheal bay"
print(great_directors)
#transformer
transformer = ["OPtimus prime", "Megatron", "Bumbulee", "Starscream"]
transformer [2]= "Grimlock"
print(transformer)
#camping
camping_trip_supplies=["socks", "Flashlight", "Tent", "Blanket"]
camping_trip_supplies[0]= "food"
print(camping_trip_supplies)
#techcompanies
tech_companies=["Google", "Microsoft", "Blwckberry", "IBM", "Yahoo"]
tech_companies [1:4]= "facebook", "apple"
print(tech_companies)