Time Limit: 2000/1000 MS (Java/Others)

Memory Limit: 32768/32768 K (Java/Others)

Mr Potato is a coder.

Mr Potato is the BestCoder.

One night, an amazing sequence appeared in his dream. Length of this sequence is odd, the median number is M, and he named this sequence as*Bestcoder Sequence*.

As the best coder, Mr potato has strong curiosity, he wonder the number of consecutive sub-sequences which are*bestcoder sequences* in a given permutation of 1 ~ N.

Mr Potato is the BestCoder.

One night, an amazing sequence appeared in his dream. Length of this sequence is odd, the median number is M, and he named this sequence as

As the best coder, Mr potato has strong curiosity, he wonder the number of consecutive sub-sequences which are

Input contains multiple test cases.

For each test case, there is a pair of integers N and M in the first line, and an permutation of 1 ~ N in the second line.

**[Technical Specification]**

1. 1 <= N <= 40000

2. 1 <= M <= N

For each test case, there is a pair of integers N and M in the first line, and an permutation of 1 ~ N in the second line.

1. 1 <= N <= 40000

2. 1 <= M <= N

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