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How to calculate the score of hyun dance card 49999?

. P Gre, ok?

1 key 500 350 250 150

Two keys 600 420 300 180

Three keys 800 560 400 240

4 keys 1 100 770 550 330

5 keys 1500 1050 750 450

6 keys 2000 1400 1000 600

Seven keys 2600 1820 1300 780

8 keys 3300 23 10 1650 990

9 key 4 100 2870 2050 1230

Hope to adopt!