C22212323232133313113313331333132313331323133313331213132323132231311   >>    C2221232323213331311331333133313231333132313331333121313232313223131   <<    C22212323232133313113313331333132313331323133313331213132323132231313   >>      C22212323232133313113313331333132313331323133313331213132323132231312   >>