C31232233133313221211113313331333133313113311331333133313121111332113313223231   >>    C3123223313331322121111331333133313331311331133133313331312111133211331322323   <<    C31232233133313221211113313331333133313113311331333133313121111332113313223233   >>      C31232233133313221211113313331333133313113311331333133313121111332113313223232   >>