Useing variable

.STACK 100H
.MODEL SMALL

.DATA
V1 DB ?

.CODE
MAIN PROC

    MOV AX,@DATA
    MOV DS,AX

    MOV AH,1
    INT 21H
    MOV V1,AL

    MOV AH,2
    MOV DL,0AH
    INT 21H
    MOV DL,0DH
    INT 21H

    MOV AH,2
    MOV DL,V1
    INT 21H
    MAIN ENDP
END MAIN