N01A0000.f BG1_c22
N01A000X.f BG1_c5
N01A000X.r BG1_c5
N01A002B.f BG1_c38
N01A002B.r BG1_c38
N01A0082.r BG1_c12
N01A00AS.f BG1_c52
N01A00B9.f BG1_c45
N01A00B9.r BG1_c45
N01A00DK.f BG1_c5
N01A00F0.f BG1_c22
N01A00F0.r BG1_c22
N01A00F3.f BG1_c14
N01A00FX.f BG1_c7
N01A00FX.r BG1_c7

##</code><code>##

open(FILE,"/Downloads/samplefile.txt") or die $!;
while(<FILE>){
$_=~s/\s+//g;
push(@array1,$_);
}
close(FILE);
#@array1= qw(hi bye hi see u later);
my %s = ();
$s{$_}++ for @array1;
for my $value ( keys %s ) {
print "\n".$s{$value}."\n";
  if ($s{$value} > 1){
        $v=$value;
        }
        if($value eq $v){
        delete $s{$value};
        }
        else{
                print "$value";
        }

}