Design and implement a special purpose system that allows access to doors 1 and 2 (D1 and D2 respectively) by persons who have been given a valid four-digit binary code. The code is entered using four switches: S1, S2, S3, and S4. Each valid switch can be set to 0 or 1. The system gives access to doors according to the following scheme:

a)D1 if 0101 or 1110 is entered.

b)D1 and D2 if 0111 is entered.

c)D2 if 0100 is entered.

Use ANDs, ORs, or Inverters

What would a schematic for this look like?