Given an array of positive integers. Your task is to find that element whose value is equal to that of its index value.
The first line of input contains an integer T denoting the number of test cases.
The first line of each test case is N, size of array. The second line of each test case contains array elements.
Print the element whose value is equal to index value. Print "Not Found" when index value does not match with value.
Note: There can be more than one element in the array which have same value as their index. You need to print every such element's index separated by a single space. Follows 1-based indexing of the array.
1 ≤ T ≤ 30
1 ≤ N ≤ 50
1 ≤ A[i] ≤ 1000
15 2 45 12 7