Using the Little Man Computer and Instruction Set, answer the following questions:1.) Write a program that asks for 3 numbers A, B, and C and then calculates -A-B-C. Output the result.2.) Write a program which outputs the numbers 9,8,7,6,5,4,3,2,1,0 then stops.3.) The following program tries to find the positive difference between two input numbers, read the code to check whether there are some errors and correct them (without using more DAT mail boxes, that is, data location is only the cell 99).00 IN 901 01 STO 99 399 02 IN 901 03 SUB 99 299 04 BRP 06 806 05 ADD 99 199 06 OUT 902 07 COB 000 … … …99 DAT 00 000 Attachment 1Attachment 2Using the Little Man Computer and Instruction Set, answer the following questions:1.) Write a program that asks for 3 numbers A, B, and C and then calculates -A-B-C. Output the result.Code with…