C31232233133313221211113313331333133313331212111133132313221231   >>    C3123223313331322121111331333133313331333121211113313231322123   <<    C31232233133313221211113313331333133313331212111133132313221233   >>      C31232233133313221211113313331333133313331212111133132313221232   >>