C11112331312111112111133133313331333132212111133133313331333132322331312323231   >>    C1111233131211111211113313331333133313221211113313331333133313232233131232323   <<    C11112331312111112111133133313331333132212111133133313331333132322331312323233   >>      C11112331312111112111133133313331333132212111133133313331333132322331312323232   >>