In C++:input a file containing small list of passwords (created by you)Input a number of threads to createEach thread is to take one of those passwords and perform a simple, selfmade, keyless...

input a file containing small list of passwords (created by you)

Input a number of threads to create

Each thread is to take one of those passwords and perform a simple, selfmade, keyless symmetrical encryption routine on the password (symmetrical meaning it can be undone by performing the algorithm backwards)

The encryption routine is required to shift the position of all of the characters and change the value of all the characters. It could be as simple as shift every letter forward, move the last letter to the first, and increase all their values by x.

If there are 9 passwords, and 4 threads were selected then they should be processed in batches of four until the third batch where only one thread would be created

When completed, the program shall output each password & encrypted version on a separate line

Anything not specifically stated in the description is left up to your taste