C22212323232133313113313331333132313331323133313331213132323132212313111   >>    C2221232323213331311331333133313231333132313331333121313232313221231311   <<    C22212323232133313113313331333132313331323133313331213132323132212313113   >>      C22212323232133313113313331333132313331323133313331213132323132212313112   >>