Even Pair Sum Checker

You are given two arrays A and B of equal length N. Your task is to determine whether there exists a pair of indices \((i, j)\) such that the sum \(A_i+B_j\) is even.

In other words, you need to check if either:

• There is at least one even number in A and at least one even number in B, or
• There is at least one odd number in A and at least one odd number in B.

If one of these conditions is met for a test case, output YES; otherwise, output NO.

Note: All formulas are rendered in \(\LaTeX\) format.

inputFormat

The input is read from standard input (stdin) and has the following format:

T
N
A1 A2 ... AN
B1 B2 ... BN
... (repeated for each test case)

Where:

• T is the number of test cases.
• For each test case:
• N is the number of elements in each array.
• The next line contains N space-separated integers for array A.
• The following line contains N space-separated integers for array B.

outputFormat

For each test case, print a single line containing YES if there exists a pair \((i, j)\) such that \(A_i+B_j\) is even; otherwise, print NO. The output should be printed to standard output (stdout).

## sample

2
3
1 2 3
4 5 6
3
1 3 5
2 4 6

YES
NO

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