H. Permutation and Queries
time limit per test
4 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output

You are given a permutation $$$p$$$ of $$$n$$$ elements. A permutation of $$$n$$$ elements is an array of length $$$n$$$ containing each integer from $$$1$$$ to $$$n$$$ exactly once. For example, $$$[1, 2, 3]$$$ and $$$[4, 3, 5, 1, 2]$$$ are permutations, but $$$[1, 2, 4]$$$ and $$$[4, 3, 2, 1, 2]$$$ are not permutations. You should perform $$$q$$$ queries.

There are two types of queries:

  • $$$1$$$ $$$x$$$ $$$y$$$ — swap $$$p_x$$$ and $$$p_y$$$.
  • $$$2$$$ $$$i$$$ $$$k$$$ — print the number that $$$i$$$ will become if we assign $$$i = p_i$$$ $$$k$$$ times.
Input

The first line contains two integers $$$n$$$ and $$$q$$$ ($$$1 \le n, q \le 10^5$$$).

The second line contains $$$n$$$ integers $$$p_1, p_2, \dots, p_n$$$.

Each of the next $$$q$$$ lines contains three integers. The first integer is $$$t$$$ ($$$1 \le t \le 2$$$) — type of query. If $$$t = 1$$$, then the next two integers are $$$x$$$ and $$$y$$$ ($$$1 \le x, y \le n$$$; $$$x \ne y$$$) — first-type query. If $$$t = 2$$$, then the next two integers are $$$i$$$ and $$$k$$$ ($$$1 \le i, k \le n$$$) — second-type query.

It is guaranteed that there is at least one second-type query.

Output

For every second-type query, print one integer in a new line — answer to this query.

Examples
Input
5 4
5 3 4 2 1
2 3 1
2 1 2
1 1 3
2 1 2
Output
4
1
2
Input
5 9
2 3 5 1 4
2 3 5
2 5 5
2 5 1
2 5 3
2 5 4
1 5 4
2 5 3
2 2 5
2 5 1
Output
3
5
4
2
3
3
3
1
Note

In the first example $$$p = \{5, 3, 4, 2, 1\}$$$.

The first query is to print $$$p_3$$$. The answer is $$$4$$$.

The second query is to print $$$p_{p_1}$$$. The answer is $$$1$$$.

The third query is to swap $$$p_1$$$ and $$$p_3$$$. Now $$$p = \{4, 3, 5, 2, 1\}$$$.

The fourth query is to print $$$p_{p_1}$$$. The answer is $$$2$$$.