The grain store brings in 50 bags of rice and 50 bags of flour, each bag of rice is 80 kilograms, and each bag of flour is 20 kilograms. How many kilograms of rice and flour are brought in altogether?
粮店运进大米、面粉各50袋，每袋大米80千克，每袋面粉20千克，运进的大米和面粉一共多少千克？
<result>50_000</result>