1250 - 2500, 1435 - 2870, 3500 - 7000, 3100 - 6200, 2005 - 4010, 310 - 620, 400 - 800, 750 - 1500, 1700 - 3400, 4020 - 8040, 2120 - 4240, 2900 - 5800, 150 - 300, 260 - 520, 315 - 630, 540 - 1080,

Halving and doubling

by Anonymous

Leaderboard

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