Given a matrix M[][], the task is to check if the sum of i-th row is equal to the sum of i-th column or not.

**Input:**

The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case consists of two lines. First line of each test case contains two integers R and C and the second line contains R*C space separated matrix elements.

**Output:**

For each test case, if sums are equal for one or more rows and column, print "Yes" else print "No".

**Constraints:**

1<=T<=100

1<=R,C<=500

0<=M[][]<=10^{3}

**Example:
Input:**

2

4 4

1 2 3 4 9 5 3 1 0 3 5 6 0 4 5 6

3 3

1 2 3 1 2 3 1 1 3

**Output:**

Yes

No

Author: arun03

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