C111112111133131121133133313331333131333132322331333132313211312331   >>    C11111211113313112113313331333133313133313232233133313231321131233   <<    C111112111133131121133133313331333131333132322331333132313211312333   >>      C111112111133131121133133313331333131333132322331333132313211312332   >>