谁能告诉我，这段怎么改啊 ？12行错误啊 ！！

STACK SEGMENT PARA STACK'STACK'
DB 256 DUP(0)
STACK ENDS
DATA SEGMENT
MESSAGE1 DB'CURRENT TIME IS:'
THOR DB?
HOR DB?
DB':'
TMIN DB?
MIN DB?
DB':'
TSEC DB?
SEC DB?,0DH,0AH
MESSAG2 DB'ENTER NEW TIME',0DH,0AH,'FOR EXAMPLE:**:**:',0DH,0AH,'$'
INPUT DB 10,0,10 DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,ES:STACK
START: MOV AX,DATA
MOV DS,AX
MOV AH, 2CH
INT 21H

MOV AL,CH
MOV AH,0
MOV BL,10
DIV BL
LEA SI,THOR
ADD AL,48
MOV [SI],AL
LEA SI,HOR
ADD AH,48
MOV [SI],AH

MOV AL,CL
MOV AH,0
MOV BL,10
DIV BL
LEA

STACK SEGMENT PARA STACK'STACK'
DB 256 DUP(0)
STACK ENDS
DATA SEGMENT
MESSAGE1 DB'CURRENT TIME IS:'
THOR DB ?
HOR DB ?
DB':'
TMIN DB ?
MIN DB ?
DB':'
TSEC DB ?
SEC DB ?,0DH,0AH
MESSAG2 DB'ENTER NEW TIME',0DH,0AH,'FOR EXAMPLE:**:**:',0DH,0AH,'$'
INPUT DB 10,0,10 DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,ES:STACK
START: MOV AX,DATA
MOV DS,AX
MOV AH, 2CH
INT 21H

MOV AL,CH
MOV AH,0
MOV BL,10
DIV BL
LEA SI,THOR
ADD AL,48
MOV [SI],AL
LEA SI,HOR
ADD AH,48
MOV [SI],AH

MOV AL,CL
MOV AH,0
MOV BL,10
DIV BL
LEA SI,TMIN
ADD AL,48
MOV [SI],AL
LEA SI,MIN
ADD AH,48
MOV [SI],AH

MOV AL,DH
MOV AH,0
MOV BL,10
DIV BL
LEA SI,TSEC
ADD AL,48