C22212323232133313113313331333132313331323132313331132212233213111   >>    C2221232323213331311331333133313231333132313231333113221223321311   <<    C22212323232133313113313331333132313331323132313331132212233213113   >>      C22212323232133313113313331333132313331323132313331132212233213112   >>