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Обсуждение задачи 1006. Квадратные рамки

I don't understand it well...
As the frame defined by the tripple (X, Y, A) will have such vertices:
(X, Y)
(X, Y + A - 1)
(X + A - 1, Y)
(X + A - 1, Y + A - 1)
Thank you (for answer my question again)!8D
The figure given is very "ugly" so that I didn't realize that it's a square!

Edited by author 20.08.2018 17:33
(Maybe we can make a friend OvO. My codeforces id is the same as my id here.
Thank you for your kind suggestion, but I am not a big fan of such things.
It's okay anyway!
Could you answer my another question please? How to read the input?(The problem has been posted) This has really bothered me a lot...