The military cafeteria needs 1,000 catties of rice and 200 catties of millet for dinner. When the quartermasters arrived at the rice store, they found that the rice store was on sale. 2 yuan per catty, for every 5 catties purchased, 2 catties of rice will be given away (the part less than 5 catties will not be given away). "How much yuan must the quartermaster pay at least to buy enough rice for dinner.
军区食堂晚饭需用1000斤大米和200斤小米，军需员到米店后发现米店正在促销，"大米1元1斤，每购10斤送1斤小米(不足10斤部分不送)；小米2元一斤，每购5斤送2斤大米(不足5斤部分不送)．"军需员至少要付多少元钱才能买够晚饭需用的米．
<result>1_168</result>