C31232233133313221211113313331333133313331212111133133313222231221   >>    C3123223313331322121111331333133313331333121211113313331322223122   <<    C31232233133313221211113313331333133313331212111133133313222231223   >>      C31232233133313221211113313331333133313331212111133133313222231222   >>