i have two list :

$1-[2,3,5,2]$

$2-[10,1,5,5]$

it increase any of these integers by $1$ at most $4,$Each list is separate from the other.Find the multiplication of the numbers in each list separately from the other after the increase.

a$)$Design an algorithm to solve this problem with the least possible complexity for the two list.

b$)$ Analyses the complexity of your solution for the two list.

c$)$ Develop a python code to implement your efficient algorithm. $[$The marks depend on the correctness of the code, indentation, comments, test$-$case$]$ for the two list.

Please sort the answer from each list to the other according to the points mentioned.