C222123232321333131133133313331333132313231333133322331223231313231211   >>    C22212323232133313113313331333133313231323133313332233122323131323121   <<    C222123232321333131133133313331333132313231333133322331223231313231213   >>      C222123232321333131133133313331333132313231333133322331223231313231212   >>