C31232233133313221211113313113313331333133313113313331333132313231311   >>    C3123223313331322121111331311331333133313331311331333133313231323131   <<    C31232233133313221211113313113313331333133313113313331333132313231313   >>      C31232233133313221211113313113313331333133313113313331333132313231312   >>