;nhap vao mot chuoi dem may ky tu thi in ra may lan
.model small
.stack 100h
.data
s db 10,?,11 dup ('$')
t db 13,10,'$'
.code
main proc
mov ax,@data
mov ds,ax

mov ah,0ah
lea dx,s
int 21h

mov si,offset s+1
mov cl,[si]
mov ch,0h

lap:

mov ah,09
mov dx,offset s+2
int 21h
mov dx,offset t
int 21h

loop lap
mov ah,4ch
int 21h
main endp
end main