There are balls of three colors in a pocket, among which the number of yellow balls is at least (1/3) of the number of blue balls and at most 25% of the number of red balls. If the total number of yellow balls and blue balls is not less than 2003, then How many red balls are there at least?
一个口袋中装有三种颜色的球，其中黄色球数至少是蓝色球数的(1/3)，至多是红色球的25%，若黄色球与蓝色球总数不少于2003个，则红色球最少有多少个．
<gadget id="calculator">2_003 + 1</gadget>
<output>2_004</output>

<result>2_004</result>