C22212323232133313113313331333133313231323133313332132331213211221   >>    C2221232323213331311331333133313331323132313331333213233121321122   <<    C22212323232133313113313331333133313231323133313332132331213211223   >>      C22212323232133313113313331333133313231323133313332132331213211222   >>