C222123232321333131133133313331323133313231323231312323221231121   >>    C22212323232133313113313331333132313331323132323131232322123112   <<    C222123232321333131133133313331323133313231323231312323221231123   >>      C222123232321333131133133313331323133313231323231312323221231122   >>