Problems A: Egypt

<p> <img align="right" width="300" alt="" src="http://tk.hustoj.com/admin/../upload/pimg28239_1.gif" /> </p> <h2> Problems A: Egypt </h2> <p> A long time ago, the Egyptians figured out that a triangle with sides of length 3, 4, and 5 had a right angle as its largest angle. You must determine if other triangles have a similar property. </p> <h2> The Input </h2> <p> Input represents several test cases, followed by a line containing 0 0 0. Each test case has three positive integers, less than 30,000, denoting the lengths of the sides of a triangle. </p> <h2> The Output </h2> <p> For each test case, a line containing "right" if the triangle is a right triangle, and a line containing "wrong" if the triangle is not a right triangle. </p>