C22212323232133313113313331333133313231323132222123123323311221   >>    C2221232323213331311331333133313331323132313222212312332331122   <<    C22212323232133313113313331333133313231323132222123123323311223   >>      C22212323232133313113313331333133313231323132222123123323311222   >>