I'm trying to output the string "you can start typing here" on the console but it displays a big gap before the text as the picture shows. One line down and indented many columns.

IDK what the problem is.
i'm using emu8086 assembly

DATA SEGMENT
str1 DB "you can start typing here : $"
ENDS

CODE SEGMENT
MOV ax,DATA
MOV ds,ax
MOV es, ax

start:
;displaying msg
mov dx, offset str1
mov ah, 09H
int 21h

;END of PROG
MOV AH,4CH
INT 21h

ENDS
end start

ret