C222123232321333131133133313331333132313231333133322331223233123121   >>    C22212323232133313113313331333133313231323133313332233122323312312   <<    C222123232321333131133133313331333132313231333133322331223233123123   >>      C222123232321333131133133313331333132313231333133322331223233123122   >>