while (<IN>) {
        chomp;
        if (/^>chr(\S*)$/) {
        $chr = $1;
        #print STDERR "[$chr]\n";
        }
        else {
        chomp $_;
        $_ =~ s/\s\r\n\t//g;
        $seq{$chr} = join ("",$_);
        #$seq{$chr} = `perl -pe 'chomp; END {print "\n" }' $file`;
        #$seq{$chr} .=  $_;
        print "$seq{$chr}\n";
        }
        #print OUT "$seq{$chr}\n";
}