NOTE: This problem statement contains subscripts that may not display properly if viewed outside of the applet.
Let's consider an infinite sequence A defined as follows:
|-||[x] denotes the floor function of x which returns the highest integer less than or equal to x. For example, [3.4] = 3, [0.6] = 0.|
|-||n will be between 0 and 10^13, inclusive.|
|-||p and q will both be between 2 and 10^9, inclusive.|
|-||x and y will both be between 0 and 10^9, inclusive.|