C22212323232133313113313331333132313331323132321111312113212131   >>    C2221232323213331311331333133313231333132313232111131211321213   <<    C22212323232133313113313331333132313331323132321111312113212133   >>      C22212323232133313113313331333132313331323132321111312113212132   >>