1939. Tiling a Grid With Dominoes

单点时限: 2.0 sec

内存限制: 256 MB

We wish to tile a grid 4 units high and N units long with rectangles (dominoes) 2 units by one unit (in either orientation). For example, the figure shows the five different ways that a grid 4 units high and 2 units wide may be tiled.

Write a program that takes as input the width, W, of the grid and outputs the number of different ways to tile a 4-by-W grid.

输入格式

The first line of input contains a single integer N, (1 ≤ N ≤ 1000) which is the number of datasets that follow.

Each dataset contains a single decimal integer, the width, W, of the grid for this problem instance.

输出格式

For each problem instance, there is one line of output: The problem instance number as a decimal integer (start counting at one), a single space and the number of tilings of a 4-by-W grid. The values of W will be chosen so the count will fit in a 32-bit integer.

样例

Input
3
2
3
7
Output
1 5
2 11
3 781

6 人解决,21 人已尝试。

6 份提交通过,共有 57 份提交。

8.4 EMB 奖励。

创建: 16 年,9 月前.

修改: 7 年,3 月前.

最后提交: 1 年,6 月前.

来源: Greater New York 2007

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