ГлавнаяСборникиТурнирыРазделыФорумыУчастникиПечатьПомощьО системе

Разделы > Неотсортированные > задача:


Coin Piles

Задачи раздела

• D. Love-Hate
• Ferris Wheel
• Repetitions
• Weird Algorithm
• Bit Strings
• Distinct Numbers
• Missing Number
• Increasing Array
• Coin Piles
• Josephus Queries
• Apartments
• Apple Division
• Creating Strings
• Trailing Zeros
• Number Spiral
• Two Sets
• Maximum Subarray Sum

Обратная связь

Если у вас есть предложения или пожелания по работе Contester, посетите форум сайта www.contester.ru.

Лимит времени 3000/5000/5000/5000 мс. Лимит памяти 65000/65000/65000/65000 Кб. Сложность Альфа


You have two coin piles containing a and b coins. On each move, you can either remove one coin from the left pile and two coins from the right pile, or two coins from the left pile and one coin from the right pile.

Your task is to efficiently find out if you can empty both the piles.

Input

The first input line has an integer t: the number of tests.

After this, there are t lines, each of which has two integers a and b: the numbers of coins in the piles.

Output

For each test, print "YES" if you can empty the piles and "NO" otherwise.

Constraints

1≤t≤105
0≤a,b≤109

Example
Input:
3
2 1
2 2
3 3

Output:
YES
NO
YES

Для отправки решений необходимо выполнить вход.

www.contester.ru