C2212133313231331121111331333133313113313231121211113313331323223213121   >>    C221213331323133112111133133313331311331323112121111331333132322321312   <<    C2212133313231331121111331333133313113313231121211113313331323223213123   >>      C2212133313231331121111331333133313113313231121211113313331323223213122   >>