C2221232323213331311331333133313231333132313232313123232212211111121   >>    C222123232321333131133133313331323133313231323231312323221221111112   <<    C2221232323213331311331333133313231333132313232313123232212211111123   >>      C2221232323213331311331333133313231333132313232313123232212211111122   >>