C11112331312111112111133133313331333133313123313331322311331121221   >>    C1111233131211111211113313331333133313331312331333132231133112122   <<    C11112331312111112111133133313331333133313123313331322311331121223   >>      C11112331312111112111133133313331333133313123313331322311331121222   >>