L = [[[1,2], [3,4,5]], "friday", {'x': "halloween", 'y':7, 'z’:77}, {10, 11, 12}] Show the commands for the following operations on L a) retrieve 'w' inside string "halloween" b) retrieve 4 c)...

Extracted text: L = [[[1,2], [3,4,5]], "friday", {'x': "halloween", 'y':7, 'z’:77}, {10, 11, 12}] Show the commands for the following operations on L a) retrieve 'w' inside string "halloween" b) retrieve 4 c) retrieve 'y' in string "friday" d) change the value of key 'z' to 100 e) place 'A' inside [3, 4, 5] f) place 'B' inside {10, 11, 12}