A common misconception of students is to claim that \[ \sin x^\circ + \sin y^\circ = \sin [ (x+y)^ \circ],\] just because \( x + y = (x+y) \). There are \(N\) ordered pairs of integers \( (x, y) \), each of which are between 0 and 360 (inclusive), which satisfy the equation \[ \sin x^\circ + \sin y^\circ = \sin [(x+y)^ \circ].\]

What are the **last three digits** of \(N\)?

**Details and assumptions**

Notice that the equations are given in degrees, not radians.

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