Code converter is a combinational circuit that translates the input code word into a new corresponding word. The excess-3 code digit is obtained by adding three to the corresponding Binary Coded Decimal (BCD) digit. Fill out Table 1-1 with 8-4-2-1 BCD and excess-3 binary codes which correspond to decimal digits. Decimal Digit 8-4-2-1 Code (BCD) Excess-3 Code value X1X2X3X4 Y1Y2Y3Y4 1 2 3 4 5 6 7 8 Table 1-1 BCD and excess-3 binary codes for decimal digits Express each variable in the excess-3 code as a function of variables in the 8-4-2-1 code, simplify the expressions as necessary: Y1 = f(x,x2x3X4) Y2 = f(x,x2x3x4) Y3 = f(x1x2x3x4) Y4 = f(x1x2x3X4)