C222123232321333131133133313331323133313231333133312131323231311112223111   >>    C22212323232133313113313331333132313331323133313331213132323131111222311   <<    C222123232321333131133133313331323133313231333133312131323231311112223113   >>      C222123232321333131133133313331323133313231333133312131323231311112223112   >>