Codeforces Round 970 (Div. 3) |
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Finished |
Today, Sakurako has a math exam. The teacher gave the array, consisting of $$$a$$$ ones and $$$b$$$ twos.
In an array, Sakurako must place either a '+' or a '-' in front of each element so that the sum of all elements in the array equals $$$0$$$.
Sakurako is not sure if it is possible to solve this problem, so determine whether there is a way to assign signs such that the sum of all elements in the array equals $$$0$$$.
The first line contains a single integer $$$t$$$ ($$$1\le t\le 100$$$) — the number of test cases.
The only line of each test case contains two integers $$$a$$$ and $$$b$$$ ($$$0\le a,b<10$$$) — the number of '1's and the number of '2's in the array.
For each test case, output "Yes" if you can make the sum of the entire array equal to $$$0$$$, and "No" otherwise.
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.
50 10 32 02 33 1
NO NO YES YES NO
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