$ echo "ABBCBCAAAAABBCBCACCCAAAAACAAAAABBBBBAAAAABBAAAAAAAABBCCCACCAABC
BCCCBCAACAABBBCAAACCAAAAACAAAAABBBBBAAAAABBAAAAAAAABBCCCACCABBC
ABCCBBBAAAABBABCACABCCCCCCAAAAABBCBBCCCCAAAAAAAAAAAAACCCACCACCC" | perl -le'
use Data::Dumper; $Data::Dumper::Useqq = 1;
my %alphabet = qw/ A 01 B 10 C 11 /; my %rev_alpha = reverse %alphabet;
while ( <> ) {
    chomp;
    print length(), " ", $_;
    # compress
    my $data = pack "B*", join "", map $alphabet{ $_ }, split //;
    print length $data, " ", Dumper $data;
    # decompress
    my $uncp = join "", map $rev_alpha{ $_ }, map /../g, unpack "B*", $data;
    print length $uncp, " ", $uncp, "\n";
    }
'
63 ABBCBCAAAAABBCBCACCCAAAAACAAAAABBBBBAAAAABBAAAAAAAABBCCCACCAABC
16 $VAR1 = "k\265V\273\177UuV\252UiUV\277}l";

63 ABBCBCAAAAABBCBCACCCAAAAACAAAAABBBBBAAAAABBAAAAAAAABBCCCACCAABC

63 BCCCBCAACAABBBCAAACCAAAAACAAAAABBBBBAAAAABBAAAAAAAABBCCCACCABBC
16 $VAR1 = "\277\265\326\255_UuV\252UiUV\277}\254";

63 BCCCBCAACAABBBCAAACCAAAAACAAAAABBBBBAAAAABBAAAAAAAABBCCCACCABBC

63 ABCCBBBAAAABBABCACABCCCCCCAAAAABBCBBCCCCAAAAAAAAAAAAACCCACCACCC
16 $VAR1 = "o\251V\233v\377\365V\272\377UUU\177}\374";

63 ABCCBBBAAAABBABCACABCCCCCCAAAAABBCBBCCCCAAAAAAAAAAAAACCCACCACCC