C22212323232133313113313331333133313231323133313332132331213222211   >>    C2221232323213331311331333133313331323132313331333213233121322221   <<    C22212323232133313113313331333133313231323133313332132331213222213   >>      C22212323232133313113313331333133313231323133313332132331213222212   >>