C22212323232133313113313331333133313231323132222123322313123221   >>    C2221232323213331311331333133313331323132313222212332231312322   <<    C22212323232133313113313331333133313231323132222123322313123223   >>      C22212323232133313113313331333133313231323132222123322313123222   >>