编程介的小学生 2019-08-17 22:01 采纳率: 20.5%
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激光的程序怎么设计Laser Beam

Problem Description
There is an equilateral triangle consist of 3 mirrors. There is a tiny slit in the corners of the triangle, which can let a laser beam pass through.

We label the 3 slits as A, B and C. There only exists two ways (see the picture above) make a laser beam enter our triangle though C, reflects 11 times in ther triangle, and exit from the triangle though C. The 2 ways are symmetry.

Here is the question for you, our great programmer. How many ways we can make a laser beam enter the triangle though C and exit though C, and the beam reflects n times in the triangle? e.g. there are 80840 ways when n is 1000001.

Input
The first line contains a number T.(1≤T≤100) Then the following T line each line contains a number n.(1≤n≤107)

Output
For each n, print the corresponding result.

Sample Input
10
2
5
7
11
13
17
19
23
29
31

Sample Output
0
0
2
2
2
0
4
4
2
6

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