C11112331333132311331333133313331333112211231211111333131133132321133221   >>    C1111233133313231133133313331333133311221123121111133313113313232113322   <<    C11112331333132311331333133313331333112211231211111333131133132321133223   >>      C11112331333132311331333133313331333112211231211111333131133132321133222   >>