codesg	segment 'code'
	assume CS:codesg,DS:codesg
	org 100h
main	proc	
	mov	ax,1000
	mov	bx,2000
	sub	ax,bx
	jnc	lab1
	jmp	end1
lab1:	lea	dx,as
	mov	ah,9
	int	21h	
end1:   mov     AX,4C00h
        int     21h
as	db	'12345$'
main	endp
codesg	ends
	end	main