C31232233133313221211113313331333133313113311331333132313231311311   >>    C3123223313331322121111331333133313331311331133133313231323131131   <<    C31232233133313221211113313331333133313113311331333132313231311313   >>      C31232233133313221211113313331333133313113311331333132313231311312   >>