C31232233133313221211113313331333132313331322121111331322232212311221   >>    C3123223313331322121111331333133313231333132212111133132223221231122   <<    C31232233133313221211113313331333132313331322121111331322232212311223   >>      C31232233133313221211113313331333132313331322121111331322232212311222   >>