C31232233133313221211113313331333133313331212111133132211322221   >>    C3123223313331322121111331333133313331333121211113313221132222   <<    C31232233133313221211113313331333133313331212111133132211322223   >>      C31232233133313221211113313331333133313331212111133132211322222   >>