C31232233133313221211113313331333133313113311331333132313233121211   >>    C3123223313331322121111331333133313331311331133133313231323312121   <<    C31232233133313221211113313331333133313113311331333132313233121213   >>      C31232233133313221211113313331333133313113311331333132313233121212   >>