C31232233133313221211113313331333133313331212111133133313221323231221   >>    C3123223313331322121111331333133313331333121211113313331322132323122   <<    C31232233133313221211113313331333133313331212111133133313221323231223   >>      C31232233133313221211113313331333133313331212111133133313221323231222   >>