C312322331333132212111133133313331333133312121111331333131111312331333121   >>    C31232233133313221211113313331333133313331212111133133313111131233133312   <<    C312322331333132212111133133313331333133312121111331333131111312331333123   >>      C312322331333132212111133133313331333133312121111331333131111312331333122   >>