C31232233133313221211113313331333133313113311331333132311212331   >>    C3123223313331322121111331333133313331311331133133313231121233   <<    C31232233133313221211113313331333133313113311331333132311212333   >>      C31232233133313221211113313331333133313113311331333132311212332   >>