C222123232321333131133133313331323133313231323222212122132323121   >>    C22212323232133313113313331333132313331323132322221212213232312   <<    C222123232321333131133133313331323133313231323222212122132323123   >>      C222123232321333131133133313331323133313231323222212122132323122   >>