Cosmic Tables

Description:

Input:

The first line contains three space-separated integers n, m and k (1 ≤ n, m ≤ 1000, 1 ≤ k ≤ 500000) — the number of table columns and rows and the number of queries, correspondingly.

Next n lines contain m space-separated numbers each — the initial state of the table. Each number p in the table is an integer and satisfies the inequality 0 ≤ p ≤ 10⁶.

Next k lines contain queries in the format "s_i x_i y_i", where s_i is one of the characters "с", "r" or "g", and x_i, y_i are two integers.

• If s_i = "c", then the current query is the query to swap columns with indexes x_i and y_i (1 ≤ x, y ≤ m, x ≠ y);
• If s_i = "r", then the current query is the query to swap rows with indexes x_i and y_i (1 ≤ x, y ≤ n, x ≠ y);
• If s_i = "g", then the current query is the query to obtain the number that located in the x_i-th row and in the y_i-th column (1 ≤ x ≤ n, 1 ≤ y ≤ m).

The table rows are considered to be indexed from top to bottom from 1 to n, and the table columns — from left to right from 1 to m.

Output:

For each query to obtain a number (s_i = "g") print the required number. Print the answers to the queries in the order of the queries in the input.

Sample Input:

3 3 5
1 2 3
4 5 6
7 8 9
g 3 2
r 3 2
c 2 3
g 2 2
g 3 2

Sample Output:

8
9
6

Sample Input:

2 3 3
1 2 4
3 1 5
c 2 1
r 1 2
g 1 3

Sample Output:

5

Note:

Let's see how the table changes in the second test case.

After the first operation is fulfilled, the table looks like that:

2 1 4

1 3 5

After the second operation is fulfilled, the table looks like that:

1 3 5

2 1 4

So the answer to the third query (the number located in the first row and in the third column) will be 5.