C222123232321333131133133313331323133313231323133311322122311312121   >>    C22212323232133313113313331333132313331323132313331132212231131212   <<    C222123232321333131133133313331323133313231323133311322122311312123   >>      C222123232321333131133133313331323133313231323133311322122311312122   >>