C11112331333132311331333133313331333132313311232233132323132313111   >>    C1111233133313231133133313331333133313231331123223313232313231311   <<    C11112331333132311331333133313331333132313311232233132323132313113   >>      C11112331333132311331333133313331333132313311232233132323132313112   >>