{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What does the instruction set of System Program include?","a":"Input/output instructions: Used for data interaction with external devices, such  as reading sensor data, etc."}]}],"pr":"e03ba4f7e3db5444424e3446003cfcf858d8f3b5693771df52c82f3408799b54"}