How to calculate the love time between light and night?

From the date of this month to the date of next month.

First, get 10 Polaris immediately after purchasing the monthly card. According to the recharge ratio of a Polaris 3 yuan, it is already 30 yuan's reward. Then give 120 Ursa minor +60 physical strength points every day for that month. * * The physical strength of constellation 3600+1800 is calculated according to the ratio of Polaris and Ursa minor 1:50. 3600 constellations are equivalent to 72 Polaris, that is, 72*3=2 16 yuan. 1800 physical strength is equivalent to using 18 Polaris to buy 18 tube physical strength, that is, 18*3=54 yuan. Finally, it is concluded that the cost performance ratio of the monthly card is 1000%, which is equivalent to using the purchasing power of 30 yuan to get the reward content of 300 yuan, and it is definitely worth the money.