It appears the first time you call a subprogram in the module asmhelp.obj. The program will request a number. Give it any legal signed or unsigned number. It should be no longer than 5 digits. If the signed or unsigned number doesn't look the same as what you entered, then the number you entered is too big for a 16 bit computer.
Lets look at the numbers.
Each type of output is labeled. This is always true. This is so you will always know what is being printed. Not all characters are visible. On the PC, ascii 33-255 are visible, but ascii 127 and ascii 255 are problematic.