input three number and compare which is greater in assembly

    .MODEL SMALL
.STACK 100H
.DATA

NUM1 DB ?

MSG1 DB 10,13, ' ENTER FIRST NUMBER: $'
MSG2 DB 10,13, ' ENTER SECOND NUMBER: $'
MSG3 DB 10,13, ' ENTER THIRD NUMBER: $'
MSG4 DB ' is GREATER THAN $'
MSG5 DB ' AND $'

.CODE
MAIN PROC
    MOV AX, @DATA
    MOV DS, AX

    LEA DX, MSG1
    MOV AH, 9
    INT 21H

    MOV AH, 1
    INT 21H
    MOV NUM1, AL

    LEA DX, MSG2
    MOV AH, 9
    INT 21H

    MOV AH, 1
    INT 21H
    MOV CL, AL

    LEA DX, MSG3
    MOV AH, 9
    INT 21H

    MOV AH, 1
    INT 21H
    MOV BL, AL

    MOV AH, 2
    MOV DL, 10
    INT 21H
    MOV DL, 13
    INT 21H

    CMP NUM1, CL
    JG L1

    CMP CL, BL
    JG L3

    MOV AH, 2
    MOV DL, BL
    INT 21H

    LEA DX, MSG4
    MOV AH, 9
    INT 21H

    MOV AH, 2
    MOV DL, NUM1
    INT 21H

    LEA DX, MSG5
    MOV AH, 9
    INT 21H

    MOV AH, 2
    MOV DL, CL
    INT 21H
    JMP EXIT


    L1:
    CMP NUM1, BL
    JG L2

    L2:
    MOV AH, 2
    MOV DL, NUM1
    INT 21H
    LEA DX, MSG4
    MOV AH, 9
    INT 21H

    MOV AH, 2
    MOV DL, CL
    INT 21H

    LEA DX, MSG5
    MOV AH, 9
    INT 21H

    MOV AH, 2
    MOV DL, BL
    INT 21H
    JMP EXIT


    L3:
    MOV AH, 2
    MOV DL, CL
    INT 21H

    LEA DX, MSG4
    MOV AH, 9
    INT 21H

    MOV AH, 2
    MOV DL, NUM1
    INT 21H

    LEA DX, MSG5
    MOV AH, 9
    INT 21H

    MOV AH, 2
    MOV DL, BL
    INT 21H



    EXIT:
    MOV AH, 4CH
    INT 21H
    MAIN ENDP
END MAIN