B. Progressive Square
time limit per test
2 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output

A progressive square of size $$$n$$$ is an $$$n \times n$$$ matrix. Maxim chooses three integers $$$a_{1,1}$$$, $$$c$$$, and $$$d$$$ and constructs a progressive square according to the following rules:

$$$$$$a_{i+1,j} = a_{i,j} + c$$$$$$

$$$$$$a_{i,j+1} = a_{i,j} + d$$$$$$

For example, if $$$n = 3$$$, $$$a_{1,1} = 1$$$, $$$c=2$$$, and $$$d=3$$$, then the progressive square looks as follows:

$$$$$$ \begin{pmatrix} 1 & 4 & 7 \\ 3 & 6 & 9 \\ 5 & 8 & 11 \end{pmatrix} $$$$$$

Last month Maxim constructed a progressive square and remembered the values of $$$n$$$, $$$c$$$, and $$$d$$$. Recently, he found an array $$$b$$$ of $$$n^2$$$ integers in random order and wants to make sure that these elements are the elements of that specific square.

It can be shown that for any values of $$$n$$$, $$$a_{1,1}$$$, $$$c$$$, and $$$d$$$, there exists exactly one progressive square that satisfies all the rules.

Input

The first line contains an integer $$$t$$$ ($$$1 \le t \le {10} ^ 4$$$) — the number of test cases.

The first line of each test case contains three integers $$$n$$$, $$$c$$$, and $$$d$$$ ($$$2 \le n \le 500$$$, $$$1 \le c, d \le 10^6$$$) — the size of the square and the values of $$$c$$$ and $$$d$$$ as described in the statement.

The second line of each test case contains $$$n \cdot n$$$ integers $$$b_1, b_2, \dots, b_{n \cdot n}$$$ ($$$1 \le b_i \le 10^9$$$) — the elements found by Maxim.

It is guaranteed that the sum of $$$n ^ 2$$$ over all test cases does not exceed $$$25 \cdot {10} ^ 4$$$.

Output

For each test case, output "YES" in a separate line if a progressive square for the given $$$n$$$, $$$c$$$, and $$$d$$$ can be constructed from the array elements $$$a$$$, otherwise output "NO".

You can output each letter in any case (lowercase or uppercase). For example, the strings "yEs", "yes", "Yes", and "YES" will be accepted as a positive answer.

Example
Input
5
3 2 3
3 9 6 5 7 1 10 4 8
3 2 3
3 9 6 5 7 1 11 4 8
2 100 100
400 300 400 500
3 2 3
3 9 6 6 5 1 11 4 8
4 4 4
15 27 7 19 23 23 11 15 7 3 19 23 11 15 11 15
Output
NO
YES
YES
NO
NO