C31232233133313221211113313331311331333133112111133131211211331   >>    C3123223313331322121111331333131133133313311211113313121121133   <<    C31232233133313221211113313331311331333133112111133131211211333   >>      C31232233133313221211113313331311331333133112111133131211211332   >>