C31232233133313221211113313331333133313331212111133133112131111   >>    C3123223313331322121111331333133313331333121211113313311213111   <<    C31232233133313221211113313331333133313331212111133133112131113   >>      C31232233133313221211113313331333133313331212111133133112131112   >>