These are at the start:

N1 G17 G90
N3 G54
N5 S3000
N7 M03
N9 F2000

This is at the end

N21 M05
N23 M30

set /p x="left/right = "
set /p y="up/down = "

N1 G17 G90>> file.txt
N3 G54>> file.txt
N5 S3000>> file.txt
N7 M03>> file.txt
N9 F2000>> file.txt
N11 G01 X%x% Y%y%>>file.txt
N13 G01 X%x% Y%y%>>file.txt //some more different then the last
N15 G01 X%x% Y%y%>>file.txt //some more different then the last

N21 M05>>file.txt
N23 M30>>file.txt