C222123232321333131133133313331333132313231333133322331223231323212232221   >>    C22212323232133313113313331333133313231323133313332233122323132321223222   <<    C222123232321333131133133313331333132313231333133322331223231323212232223   >>      C222123232321333131133133313331333132313231333133322331223231323212232222   >>