# Earth revenges

Geometry Level 5

If you can distribute a group on a planet in such a way that the distance $$D$$ between each person and the closest person near him is maximal, the group is around $$10^7$$ people, planet radius is $$640\text{ m}$$.

Assume you can put anyone anywhere you want on the planet.

Submit your answer as $$1000D$$.

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