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一只小蜜蜂...

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 155028    Accepted Submission(s): 54459


Problem Description
有一只经过训练的蜜蜂只能爬向右侧相邻的蜂房,不能反向爬行。请编程计算蜜蜂从蜂房a爬到蜂房b的可能路线数。
其中,蜂房的结构如下所示。

 

Input
输入数据的第一行是一个整数N,表示测试实例的个数,然后是N 行数据,每行包含两个整数a和b(0<a<b<50)。
 

Output
对于每个测试实例,请输出蜜蜂从蜂房a爬到蜂房b的可能路线数,每个实例的输出占一行。
 

Sample Input
2 1 2 3 6
 

Sample Output
1 3
 

Author
lcy
 

Source
 

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