{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why must the random number account in the durable transaction function be rent-free?","a":"Enhance convenience: Rent-free random number accounts mean that users can use the random number  generator for free without worrying about rental issues. This helps to attract more users to use this feature."}]}],"pr":"04111ab22f064f5e3b952ff32daf7a27372f9572b38c5eaf2adb8335a5c3dc55"}