Design and implement a digital circuit to convert the input Code from One form of four bit code to other code

Design and implement a digital circuit to convert the input Code from One form of four bit code to other code. a. Using n input logical elements, Sum of Product (AND -OR -Invert Logic)., b. Using n input logical elements, Product of Sum (OR-AND -Invert Logic). , c. Using n input NAND Gates d. Using n input NOR Gates, Assume n as 1, 2, 3... Hint: ( 6311, 4421, 84-2-1, 2421 , gray , BCD+1 ,BCD+2 , BCD + 3 ,8 4-1-2, 48-1-2,48, 4312, 5311, -2-1,1136, 2124,1224, 1233,3321,3312, 2133, -1-248,8-2-14, 8421,8412,8124,1248,1163 ,1631,6113, 3116, 4124, 1244, 2144,5421 , 4521, 4512, 5412,1245,1254, 63-1-1,6-1-13,36-1-1,-1-136, -1-163,1135,1351,1531, 3511,BCD -1 code, BCD -2 code , BCD -3 code,4321,1234 ,4123,1324,4123 , 4213 similar to this you can search various 4 bit Code to represent 0-9 in decimal numbers )