Problem D. Little Victor and Set

时间限制 1 ms   内存限制 256 MB

Little Victor adores the sets theory. Let us remind you that a set is a group of numbers where all numbers are pairwise distinct. Today Victor wants to find a set of integers S that has the following properties:

  • for all x the following inequality holds l ≤ x ≤ r;
  • 1 ≤ |S| ≤ k;
  • lets denote the i-th element of the set S as si; value must be as small as possible.

Help Victor find the described set.

输入数据

The first line contains three space-separated integers l, r, k(1 ≤ l ≤ r ≤ 1012; 1 ≤ k ≤ min(106, r - l + 1)).

输出数据

Print the minimum possible value of f(S). Then print the cardinality of set |S|. Then print the elements of the set in any order.

If there are multiple optimal sets, you can print any of them.

样例

样例说明

Operation b364f2e04c665b78b924ec10666327a4ef4635bc.png represents the operation of bitwise exclusive OR. In other words, it is the XOR operation.

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