Super Poker

题目描述

I have a set of super poker cards, consisting of an infinite number of cards. For each positive integer p, there are exactly
four cards whose value is p: Spade(S), Heart(H), Club(C) and Diamond(D). There are no cards of other values.
 
Given two positive integers n and k, how many ways can you pick up at most k cards whose values sum to n? For
example, if n=15 and k=3, one way is 3H + 4S + 8H, shown below: 

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输入格式

There will be at most 20 test cases, each with two integers n and k (1<=n<=10 , 1<=k<=10). The input is terminated by
n=k=0.

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输出格式

For each test case, print the number of ways, modulo 1,000,000,009.

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样例输入

2 1 
2 2 
2 3 
50 5 
0 0 

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样例输出

4 
10 
10 
1823966 

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提示

 湖南省第七届大学生程序设计大赛

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题目来源

鸣谢刘汝佳先生授权使用