Create a simple integer calculator using the MARIE computer and please make sure there are no errors and test it to make sure it works correct.

Please also send me the $.$mas file after testing to make sure the code is correct not only the answer but the $.$mas file.

The program should execute as follows:

$1.$ Using the INPUT instruction wait for the user to enter a decimal number.

$2.$ Using the INPUT instruction wait for the user to enter the operator as the ASCII

character $+,-$ or $*.$

$3.$ Using the INPUT instruction wait for the user to enter a second decimal number.

$4.$ Perform the desired addition, subtraction, or multiplication operation.

$5.$ Store the result in a variable in memory.

$6.$ Display the result via the OUTPUT instruction.

$7.$ If an invalid operation is requested, display a zero as the result.

$8.$ The code should be clearly commented.

Submit your $.$MAS file to the Project $1$ dropbox.

The multiply can be done by repeated additions. For example, $12*3$ would be

calculated as $12+12+12.$ You need to support a negative multiplier and negative

multiplicand $(12*-3)$