C222123232321333131133133313331323133313231333133312131323321123111   >>    C22212323232133313113313331333132313331323133313331213132332112311   <<    C222123232321333131133133313331323133313231333133312131323321123113   >>      C222123232321333131133133313331323133313231333133312131323321123112   >>