GNY07H - Tiling a Grid With Dominoes

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.

Input

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.

Output

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.

Example

Input:
3
2
3
7

Output:
1 5
2 11
3 781

Added by:Marco Gallotta
Date:2008-03-12
Time limit:9.600s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ERL JS-RHINO NODEJS PERL6 VB.NET
Resource:ACM Greater New York Regionals 2007

hide comments
2018-07-15 04:09:23
This will help http://journeywithdp.blogspot.com/2018/07/way-to-solve-tiling-problems.html
2018-03-06 16:35:48
Find the recurrence relation.
2017-06-29 09:24:19
dp+bitmask
2017-05-24 08:28:38
Nice problem :) Ac in one go.
2017-04-03 07:35:41
fantastic problem :)

Last edit: 2017-04-03 07:36:45
2016-06-08 11:46:46
Good problem. AC in first attempt :p
2016-01-22 12:01:09 minhthai
backtracking is ok :)
2016-01-15 10:37:48 birdie
backtracking+dynamic programing
2015-12-30 19:06:34 Francky
Image restored.
2015-12-30 13:51:57 quirk
For those who need the image: http://imgur.com/nhxjwNe
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