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.MODEL SMALL
.STACK 100H
.DATA
MSG DB 'INPUT NUMBER :'
.CODE
MAIN PROC
    
     MOV AH,1
     INT 21H
     MOV BL,AL  
     
     MOV AH,2
     MOV DL,0DH
     INT 21H
     MOV DL,0AH
     INT 21H
     
     MOV CX,0
     
     MOV CL,BL
     SUB CL,48 
     
     MOV AH,2
     
     JCXZ EXIT
     TOP:
     
     MOV DL,BL
     INT 21H
     DEC BL
     LOOP TOP
     
      
     EXIT:
     
       
     MOV AH,4CH
     INT 21H
     MAIN ENDP
     END MAIN