Something
public text v1 · immutableon *:TEXT:!checkz:#: {
write -l1 totalscheck.txt $read(Blacknickstotal.txt, 1)
var %c = 2
while ($read(Blacknickstotal.txt, %c) <= 21) && ($read(Blacknickstotal.txt, %c) > $read(totalscheck.txt, 1)) {
write -l1 totalscheck.txt $read(Blacknickstotal.txt, %c)
inc %c
}
}