Is Number in Array

DATA SEGMENT 
STRING1 DB 11H,22H,33H,44H,55H 
MSG1 DB "FOUND$" 
MSG2 DB "NOT FOUND$" 
SE DB 33H 
DATA ENDS

PRINT MACRO MSG 
MOV AH, 09H 
LEA DX, MSG 
INT 21H 
INT 3 
ENDM

CODE SEGMENT 
ASSUME CS:CODE, DS:DATA 
START: 
MOV AX, DATA 
MOV DS, AX 
MOV AL, SE 
LEA SI, STRING1 
MOV CX, 04H

UP: 
MOV BL,[SI] 
CMP AL, BL 
JZ FO 
INC SI 
DEC CX 
JNZ UP 
PRINT MSG2 JMP END1

FO: PRINT MSG1

END1: 
INT 3 
CODE ENDS
END START