C31232233133313221211113313331311331333133313331323132313231121   >>    C3123223313331322121111331333131133133313331333132313231323112   <<    C31232233133313221211113313331311331333133313331323132313231123   >>      C31232233133313221211113313331311331333133313331323132313231122   >>