Create a calculator in HLA Language that will clear variable m and can add, subtract, multiply, and divide to that variable, like so:

Enter c (calculate), +, -, *, /, q (quit): c

M is: 0

Enter c (calculate), +, -, *, /, q (quit): +

Number? 124

M is: 124

Enter c (calculate), +, -, *, /, q (quit): -

Number? 3

M is 121

Enter c (calculate), +, -, *, /, q (quit): q

Done!