C222123232321333131133133313331323133313231323231312323221222123121   >>    C22212323232133313113313331333132313331323132323131232322122212312   <<    C222123232321333131133133313331323133313231323231312323221222123123   >>      C222123232321333131133133313331323133313231323231312323221222123122   >>