If recycling 1 ton of waste paper can produce 800 kilograms of paper, then how many kilograms of paper can the school recycle 5 tons of waste paper each year?
如果回收1吨废纸能再生产800千克纸，那么学校每年回收废纸5吨，共可再生产多少千克纸？
<result>3_200</result>