题目描述
Consider a sequence of non- negative integers b(1), b(2) … , b(n) of length n. The given sequence is called a winning sequence if and only if there exists integers p and q between 1 and n (both inclusive) such that a(p) xor a(p+1) xor a(p+2) …. xor a(q) = 0. The xor operation is the bitwise xor operation between two integers.
The task at hand for you is to compute the number of sequence made of n integers as described earlier, ranging from zero to 2^k - 1 that are not winning sequences. Print your final answer in output modulo (10^9 + 9) .
Input
The input line contains contains two space-separated integers n and k
Output
Print answer modulo 1000000009 (10^9 + 9) on the only line of output.
Constraints
1 ≤ n ≤ 10^5
1 ≤ k ≤ 10^5
Example
Input:
3 2
Output:
6
输入格式
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输出格式
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