C22212323232133313113313331333133313231323133313332132331213213233121   >>    C2221232323213331311331333133313331323132313331333213233121321323312   <<    C22212323232133313113313331333133313231323133313332132331213213233123   >>      C22212323232133313113313331333133313231323133313332132331213213233122   >>