In order to strengthen students' physical fitness and prevent the occurrence of influenza, a certain town vaccinated the teachers and students of primary and secondary schools for free. There were 144 primary and secondary school teaching classes in the town, with an average of 45 students in each class, and a total of 216 primary and secondary school teachers. If each teacher and student is injected with one vaccine, how many vaccines are needed in the whole town?
为增强学生体质，预防流感的发生，某镇免费为广大中小学师生注射疫苗，该镇有144个中小学教学班，平均每个班有45名学生，共有216名中小学教师．如果每名师生注射1支疫苗，全镇共需疫苗多少支？
<gadget id="calculator">144 * 45</gadget>
<output>6_480</output>

<gadget id="calculator">6_480 + 216</gadget>
<output>6_696</output>

<result>6_696</result>