C312322331333132212111133133313331333133312121111331333131112323121   >>    C31232233133313221211113313331333133313331212111133133313111232312   <<    C312322331333132212111133133313331333133312121111331333131112323123   >>      C312322331333132212111133133313331333133312121111331333131112323122   >>