C31232233133313221211113313331311331333133313113313331333132313311211   >>    C3123223313331322121111331333131133133313331311331333133313231331121   <<    C31232233133313221211113313331311331333133313113313331333132313311213   >>      C31232233133313221211113313331311331333133313113313331333132313311212   >>