1141: Median（已翻译）

    Given an increasing sequence S of N integers, the median is the number at the middle position. For example, the median of S1={11, 12, 13, 14} is 12, and the median of S2={9, 10, 15, 16, 17} is 15. The median of two sequences is defined to be the median of the non-decreasing sequence which contains all the elements of both sequences. For example, the median of S1 and S2 is 13.

    Given two increasing sequences of integers, you are asked to find their median.

    给定一个由N个整数组成的递增序列S，它的中位数是位于中间位置的数字。例如，S1={11,12,13,14}的中位数是12,S2={9,10,15,16,17}的中位数是15。定义两个序列的中位数为包含两个序列的所有元素的非递减序列的中位数。例如，S1和S2的中位数是13。

    Each input file may contain more than one test case.

    Each case occupies 2 lines, each gives the information of a sequence. For each sequence, the first positive integer N (≤1000000) is the size of that sequence. Then N integers follow, separated by a space.
    It is guaranteed that all the integers are in the range of long int.

    每个输入文件可能包含一个以上的测试用例。

    For each test case you should output the median of the two given sequences in a line.

    对于每个测试用例，您应该在一行中输出两个给定序列的中位数。

4 11 12 13 14
5 9 10 15 16 17

13