Assemble Addition and Subtraction with Big Input

.MODEL SMALL
.STACK 100H

.CODE
MAIN PROC
    INCLUDE 'EMU8086.INC'

    DEFINE_SCAN_NUM
    DEFINE_PRINT_NUM
    DEFINE_PRINT_NUM_UNS

    ;PRINT 'ENTER THE NUMBER : '

    CALL SCAN_NUM
    MOV AX,CX
    PRINTN ''

    CALL SCAN_NUM
    ADD AX,CX

    CALL PRINT_NUM

    SUB AX,CX

    PRINTN ''


    CALL PRINT_NUM


END MAIN