Special Keyboard
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  Difficulty: Medium   Marks: 4

Imagine you have a special keyboard with the following keys: 
Key 1:  Prints 'A' on screen
Key 2: (Ctrl-A): Select screen
Key 3: (Ctrl-C): Copy selection to buffer
Key 4: (Ctrl-V): Print buffer on screen appending it after what has already been printed. If you can only press the keyboard for N times (with the above four keys), write a program to produce maximum numbers of A's. That is to say, the input parameter is N (No. of keys that you can press), the output is M (No. of As that you can produce).

Input:
The first line of input contains an integer T denoting the number of test cases. The first line of each test case is N, N is the number of key.

Output:
Print maximum number of A's. Print -1, if N is greater than 75.

Constraints:
1 ≤ T ≤ 50
1 ≤ N ≤ 75

Example:
Input:
2
3
7

Output:
3
9

Explanation:
Testcase 1:  We can at most get 3 A's on screen by pressing following key sequence.
A, A, A
.
Testcase 2: We can at most get 9 A's on screen by pressing following key sequence.
A, A, A, Ctrl A, Ctrl C, Ctrl V, Ctrl

** For More Input/Output Examples Use 'Expected Output' option **

Author: rajatjha


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