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

1. 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 \(-1\).
2. 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