1528 Sperner
Description
Sperner is an industrious boy excelling at solving mathematical problems. This time he encountered a tough problem concerning about sets, hence your help will be of great value.
Given a set A with a size n, and you can create a set B whose elements are subsets of A. But you should guarantee that the element s of B don’t belong to each other, which displays the constraint that if u and v belong to B, then u is not a subset of v and vice versa(note that B is a set formed by subsets of A).
Here comes the real problem, what is the maximum size of B?
Input
The first line of input contains a number T (1<T<50), which is the number of test cases. Each of the following T lines contains one integer n (1<=n<=50), which is the size of A.
Output
For each test case, print a line the maximum size of B corresponding to n, the size of A.
Sample
Input
2
1
2
Output
1
2
Source: Limitfan
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