C31232233133313221211113313331311331333133313331311331323122311   >>    C3123223313331322121111331333131133133313331333131133132312231   <<    C31232233133313221211113313331311331333133313331311331323122313   >>      C31232233133313221211113313331311331333133313331311331323122312   >>