Not sure

Four circles of unit radius are drawn with centers $(0, 1)$, $(0, 1)$, $(-1, 0)$, and $(0, -1)$. A circle with radius $2$ is drawn with the origin as its center. What is the area of all points that are contained in an odd number of these $5$ circles? (Express your answer in the form "a pi + b" or "a pi - b", where a and b are integers.)

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