C22212323232133313113313331333132313331323132313331132232121123111   >>    C2221232323213331311331333133313231333132313231333113223212112311   <<    C22212323232133313113313331333132313331323132313331132232121123113   >>      C22212323232133313113313331333132313331323132313331132232121123112   >>