C222123232321333131133133313331333132313231333133322331223231322221211   >>    C22212323232133313113313331333133313231323133313332233122323132222121   <<    C222123232321333131133133313331333132313231333133322331223231322221213   >>      C222123232321333131133133313331333132313231333133322331223231322221212   >>