How much is the new mart parking lot in Luohe?

Luohe new mart parking lot charging rules are as follows:

1. If you shop in New Mart and spend three hours before parking, you can park for one hour for free with the receipt.

2. After parking at New Mart 1 hour, 3 yuan will be charged for each additional 1 hour, and the part of 1 hour will be counted as 1 hour, but it will not exceed 20 yuan in 24 hours. After more than 24 hours, re-cycle calculation.