Problem Statement

There are $N$ points on the $xy$-plane, numbered $1,2,\ldots,N$. The coordinates of point $i$ are $(i,A_i)$.

For $i=1,2,\ldots,N-1$, connect point $i$ and point $i+1$ with a line segment to form one polyline.

Find the number of points on this polyline (including its endpoints) whose $y$-coordinate is $K$.

Here, the constraints guarantee that the number of points satisfying the condition is finite.

Constraints

• $2 \le N \le 100$
• $1 \le A_i \le 100$ $(1 \le i \le N)$
• $A_i \ne A_{i+1}$ $(1 \le i < N)$
• $1 \le K \le 100$
• All input values are integers.

Input

The input is given from Standard Input in the following format:

N K
A_1 A_2 \ldots A_N

Output

Print the number of points on the polyline whose $y$-coordinate is $K$.