C11112331312111112111133133313331333132212111133133313331323232331   >>    C1111233131211111211113313331333133313221211113313331333132323233   <<    C11112331312111112111133133313331333132212111133133313331323232333   >>      C11112331312111112111133133313331333132212111133133313331323232332   >>