Copying Data

Description:

Input:

The first line contains two space-separated integers n and m (1 ≤ n, m ≤ 10⁵) — the number of elements in the arrays and the number of queries, correspondingly. The second line contains an array of integers a₁, a₂, ..., a_n (|a_i| ≤ 10⁹). The third line contains an array of integers b₁, b₂, ..., b_n (|b_i| ≤ 10⁹).

Next m lines contain the descriptions of the queries. The i-th line first contains integer t_i — the type of the i-th query (1 ≤ t_i ≤ 2). If t_i = 1, then the i-th query means the copying operation. If t_i = 2, then the i-th query means taking the value in array b. If t_i = 1, then the query type is followed by three integers x_i, y_i, k_i (1 ≤ x_i, y_i, k_i ≤ n) — the parameters of the copying query. If t_i = 2, then the query type is followed by integer x_i (1 ≤ x_i ≤ n) — the position in array b.

All numbers in the lines are separated with single spaces. It is guaranteed that all the queries are correct, that is, the copying borders fit into the borders of arrays a and b.

Output:

For each second type query print the result on a single line.

Sample Input:

5 10
1 2 0 -1 3
3 1 5 -2 0
2 5
1 3 3 3
2 5
2 4
2 1
1 2 1 4
2 1
2 4
1 4 2 1
2 2

Sample Output:

0
3
-1
3
2
3
-1