C22212323232133313113313331333132313331323132313331132232321311   >>    C2221232323213331311331333133313231333132313231333113223232131   <<    C22212323232133313113313331333132313331323132313331132232321313   >>      C22212323232133313113313331333132313331323132313331132232321312   >>