SOLVE
LATER
In this problem, we define "set" is a collection of distinct numbers. For two sets \(A\) and \(B\), we define their sum set is a set \(S(A, B) = \{a + b | a\in A, b \in B\}\). In other word, set \(S(A, B)\) contains all elements which can be represented as sum of an element in \(A\) and an element in \(B\). Given two sets \(A, C\), your task is to find set \(B\) of positive integers with maximum size such that \(S(A, B) = C\). It is guaranteed that there is unique such set.
Input Format
The first line contains \(N\) denoting the number of elements in set \(A\), the following line contains \(N\) space-separated integers \(a_i\) denoting the elements of set \(A\).
The third line contains \(M\) denoting the number of elements in set \(C\), the following line contains \(M\) space-separated integers \(c_i\) denoting the elements of set \(C\).
Output Format
Print all elements of \(B\) in increasing order in a single line, separated by space.
Constraints
If \(e\) is an element of set \(B\), then \(e + 2\) is an element of set \(C\), so we must have \(e \le 3\). Clearly, \(e\) cannot be \(1\) because \(1 + 1 = 2\) is not an element of set \(C\). Therefore, \(B = \{2, 3\}\).