C11111333133313232233133313331333132332322121111331333131232311211322231   >>    C1111133313331323223313331333133313233232212111133133313123231121132223   <<    C11111333133313232233133313331333132332322121111331333131232311211322233   >>      C11111333133313232233133313331333132332322121111331333131232311211322232   >>