C222123232321333131133133313331323133313231323222212122132123111   >>    C22212323232133313113313331333132313331323132322221212213212311   <<    C222123232321333131133133313331323133313231323222212122132123113   >>      C222123232321333131133133313331323133313231323222212122132123112   >>