**Problem Statement**

Given an array of N elements and an integer K, return the position of the first occurrence of K in given array. The position of the first element is considered as 1.

**Output**-1 if the number is not found in an array.

**Input**: The first line contains 'T' denoting the number of test cases. Then follows the description of test cases. Each case begins with a two space separated integer N and K denoting the size of the array and the value of K respectively. The next line contains the N-space separated integers denoting the elements of the array.

**Output**: For each test case, print the index of the first occurrence of given number K.

Print -1 if the number is not found in the array.

**Constraints**:

1<=T<=100

1<=N<=1000

1<=K<=100000

1<=A[i]<=100000

**Example**:

**Input**:

2

5 16

9 7 2 16 4

7 98

1 22 57 47 34 18 66

**Output**:

4

-1