C2221232323213331311331333133313231333132313232111131133232111231   >>    C222123232321333131133133313331323133313231323211113113323211123   <<    C2221232323213331311331333133313231333132313232111131133232111233   >>      C2221232323213331311331333133313231333132313232111131133232111232   >>