Design a password system verifier where a predefined password is saved in the

system. The password is a $3-$digit $BCD$ number.

At first the user enters the value he wants. Then he contirms his entry. With the

use of two LFDS$/$probes $($one is on and the other is off$),$ if the evtered value is

correct the state of the probes swivhes. Otherwise the probes stay the same $($no

change$).$