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骨牌铺方格

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 99206    Accepted Submission(s): 47514


Problem Description
在2×n的一个长方形方格中,用一个1× 2的骨牌铺满方格,输入n ,输出铺放方案的总数.
例如n=3时,为2× 3方格,骨牌的铺放方案有三种,如下图:
 

Input
输入数据由多行组成,每行包含一个整数n,表示该测试实例的长方形方格的规格是2×n (0<n<=50)。
 

Output
对于每个测试实例,请输出铺放方案的总数,每个实例的输出占一行。
 

Sample Input
1 3 2
 

Sample Output
1 3 2
 

Author
lcy
 

Source
 

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