C111112111133131121133133313331333132311211312111113331333132233322121   >>    C11111211113313112113313331333133313231121131211111333133313223332212   <<    C111112111133131121133133313331333132311211312111113331333132233322123   >>      C111112111133131121133133313331333132311211312111113331333132233322122   >>