use strict;

my $find = '^(H0|HT)';

	open (NEW, ">", "OUTPUT.txt" ) or die "could not open:$!";

	open (FILE, "<", "INPUT.txt") or die "could not open:$!";

		while (<FILE>) {
		print NEW if /^(.{32}$find)/;
	}
close (FILE);
close (NEW);