C222123232321333131133133313331333132313231333133322331223231311312331   >>    C22212323232133313113313331333133313231323133313332233122323131131233   <<    C222123232321333131133133313331333132313231333133322331223231311312333   >>      C222123232321333131133133313331333132313231333133322331223231311312332   >>