C31232233133313221211113313331333133313332213121111331311331323133112311   >>    C3123223313331322121111331333133313331333221312111133131133132313311231   <<    C31232233133313221211113313331333133313332213121111331311331323133112313   >>      C31232233133313221211113313331333133313332213121111331311331323133112312   >>