Design and simulate the two 8-bit BCD integer adder (e.g, number 1000 1000 in BCD is (88)10). You have four-bit full adder blocks and a variety of combinatorial logic gate circuits as many as needed. The output of the sum of numbers should be reported as a BCD or a decimal number. At least, simulate the switching with input values (99) 10+(99) 10 and some other arbitrary num- ber pair. Submit images of the Logisim file to Moodle. Tips: You can use ready-made 4-bit full adder block (from Design > Arithmetic > Adder (change properties Data Bits = 4)) Use splitters to combine/split wires (change "Fan out" and "Bit Width in" properties as needed) The clearest way to express the result is by using the Hex digit display components (from Design > Input/output> Hex digit display). It accepts 4-bit binary numbers. Below you can see a example circuit using all of the mentioned components. The adder block has been set to accept 4 bit numbers and we then do a summation of 0001+0011 which equals to 4. out