C222123232321333131133133313331333132313231322221231233211321231   >>    C22212323232133313113313331333133313231323132222123123321132123   <<    C222123232321333131133133313331333132313231322221231233211321233   >>      C222123232321333131133133313331333132313231322221231233211321232   >>