C11112331312111112111133133313331333133313331333133313331333131122112113331   >>    C1111233131211111211113313331333133313331333133313331333133313112211211333   <<    C11112331312111112111133133313331333133313331333133313331333131122112113333   >>      C11112331312111112111133133313331333133313331333133313331333131122112113332   >>