C22212323232133313113313331333132313331323133313331213132333313232321   >>    C2221232323213331311331333133313231333132313331333121313233331323232   <<    C22212323232133313113313331333132313331323133313331213132333313232323   >>      C22212323232133313113313331333132313331323133313331213132333313232322   >>