org 256

	std
	mov cx,100
	xor ax,ax
	push ax
	mov bx,sp
stacker	push ax
	loop stacker

reader	mov ah,8
	int 21h
	mov ah,2
	mov cl,101
	mov dl,al
	xor al,'0'
	shr al,1
	jnz other

	int 21h
	mov di,bx
ascadd	stosw
	mov al,[di]
	adc al,al
	aaa
	loop ascadd
	jmp short reader

other	mov dl,'='
printer	int 21h
	pop dx
	add dl,'0'
	loop printer
	ret