Problem Statement

You are given a sequence P that is a permutation of (1,2,…,N), and an integer X.
The i-th term of P has a value of P_i.
Print k such that P_k = X.

Input

The input is given from Standard Input in the following format:
N X
$P_1 P_2 \ldots P_N$

Output

Print the answer.

Constraints

• $1 \leq N \leq 100$
• $1 \leq X \leq N$
• P is a permutation of (1,2,…,N).
• All values in the input are integers.

Sample Input 1

4 3
2 3 1 4

Sample Output 1

2

We have P = (2,3,1,4), so P_2 = 3. Thus, you should print 2.

Sample Input 2

5 2
3 5 1 4 2

Sample Output 2

5

Sample Input 3

6 6
1 2 3 4 5 6

Sample Output 3

6

见题面 Input 部分

见题面 Output 部分