Operations on an array

You are given an array of \(n\) elements and an integer \(x\). You must perform the following types of operations on the array:

Find the index of the \(k^{th}\) occurrence of \(x\) in the range \(l\) to \(r\) (both inclusive). If there are no indexes that satisfy the condition, then print \(-1\).
Update the value that is present at the given index.

For each query of type 1, print the index of the \(k^{th}\) occurrence of \(x\).

Input format

The first line contains two integers \(n\) and \(x\) denoting the number of elements and an integer whose index is required respectively.
The second line contains \(n\) integers \(a_i\)denoting the elements of the array
The third line contains an integer \(q\) denoting the number of queries
Next q lines contain the following type of queries:
- If type is equal to 1, then \(l\), \(r\), and \(k\) (refer to the first point of the problem statement)
- If type is equal to 2, then index and value (refer to the second point of the problem statement)

Output format

Print \(q\) integers as the answer to type 1 queries. If there are no indexes that satisfy the condition, then print \(-1\).

Constraints

\(1 ≤ n ≤ 10^6\)

\(1 ≤ x ≤ 10^3\)

\(1 ≤ a_i ≤ 10^3\)

\(1 ≤ q ≤ 10^6\)

\(1 ≤ type ≤ 2\)

\(1 ≤ l ≤ r ≤ n\)

\(1 ≤ k ≤ 10^3\)

\(1 ≤ index ≤ n\)

\(1 ≤ value ≤ 10^3\)