C111112111133131121133133313331333132313232233131133132313223231231   >>    C11111211113313112113313331333133313231323223313113313231322323123   <<    C111112111133131121133133313331333132313232233131133132313223231233   >>      C111112111133131121133133313331333132313232233131133132313223231232   >>