Introduction - If you have any usage issues, please Google them yourself
The program should ensure functioning in two modes: the manager
(The user with fixed name ADMIN) and the usual user.
In a mode of the manager the program should support
Following functions (at correct input of the password):
Change of the password of the manager (at correct input of the old password)
Viewing of the list of names of the registered users and the parametres established for them (accounting record blocking, inclusion of restrictions on chosen passwords) - all list entirely in one window or on one element of the list with moving possibility to its beginning or the end
Addition of a unique name of the new user to the list with the empty password (line of zero length)
Blocking of possibility of work of the user with the set name inclusion or switching-off of restrictions on passwords chosen by the user (according to the individual task defined by number of a variant)
End of work with the program.