my $file = "LIST";
open (FH, "< $file") or die "Can't open $file for read: $!";
my @hsa_sub = <FH>;

for($x=0;$x<=$#hsa_sub;$x++)
{
	$s=$hsa_sub[$x];
	$sline=`cat siper_sub | grep -n $s`;
	`sed '/substrate/!d; /$s/!d;{n;p}' everything_hsa | grep -i product | awk {'print $2,$3,$4'} >> prodlist`
	
	my $fil = "prodlist";
	open (FH, "< $fil") or die "Can't open $fil for read: $!";
	my @prod.$s.$x = <FH>;

}