C22212323232133313113313331333132313331323133313331213132323123222233321   >>    C2221232323213331311331333133313231333132313331333121313232312322223332   <<    C22212323232133313113313331333132313331323133313331213132323123222233323   >>      C22212323232133313113313331333132313331323133313331213132323123222233322   >>