CF1797B.Li Hua and Pattern

传统题 时间 2000 ms 内存 256 MiB 5 尝试 1 已通过 1 标签

Li Hua and Pattern

Li Hua has a pattern of size n×nn\times n, each cell is either blue or red. He can perform exactly kk operations. In each operation, he chooses a cell and changes its color from red to blue or from blue to red. Each cell can be chosen as many times as he wants. Is it possible to make the pattern, that matches its rotation by 180180^{\circ}?

Suppose you were Li Hua, please solve this problem.

Input

The first line contains the single integer tt (1t1001 \le t \le 100) — the number of test cases.

The first line of each test case contains two integers n,kn,k (1n103,0k1091\le n\le 10^3,0\le k \le 10^9) — the size of the pattern and the number of operations.

Each of next nn lines contains nn integers ai,ja_{i,j} (ai,j{0,1}a_{i,j}\in\{0,1\}) — the initial color of the cell, 00 for blue and 11 for red.

It's guaranteed that sum of nn over all test cases does not exceed 10310^3.

Output

For each set of input, print "YES" if it's possible to make the pattern, that matches its rotation by 180180^{\circ} after applying exactly kk of operations, and "NO" otherwise.

You can output the answer in any case (upper or lower). For example, the strings "yEs", "yes", "Yes", and "YES" will be recognized as positive responses.

Note

In test case 1, you can't perform any operation. The pattern after rotation is on the right.

In test case 2, you can perform operations on (2,1),(3,2),(3,4)(2,1),(3,2),(3,4). The pattern after operations is in the middle and the pattern after rotation is on the right.

Samples

3
4 0
1 1 1 1
0 0 0 1
1 0 1 0
1 1 1 1
4 3
1 0 1 1
1 0 0 0
0 1 0 1
1 1 0 1
5 4
0 0 0 0 0
0 1 1 1 1
0 1 0 0 0
1 1 1 1 1
0 0 0 0 0
NO
YES
YES

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