C31232233133313221211113313331333133313331212111133133313232321322221   >>    C3123223313331322121111331333133313331333121211113313331323232132222   <<    C31232233133313221211113313331333133313331212111133133313232321322223   >>      C31232233133313221211113313331333133313331212111133133313232321322222   >>