C22212323232133313113313331333133313231323132222123112213223321   >>    C2221232323213331311331333133313331323132313222212311221322332   <<    C22212323232133313113313331333133313231323132222123112213223323   >>      C22212323232133313113313331333133313231323132222123112213223322   >>