C31232233133313221211113313113313331333133313113313331333121231   >>    C3123223313331322121111331311331333133313331311331333133312123   <<    C31232233133313221211113313113313331333133313113313331333121233   >>      C31232233133313221211113313113313331333133313113313331333121232   >>