In a mathematics competition, 35 pencils were prepared as prizes for the first, second and third prize students. The original plan was to give 6 pencils to each person for the first prize, 3 pencils for each person for the second prize, and 3 pencils for each person for the third prize. 2 pieces were given out, and later it was changed to 13 pieces per person for the first prize, 4 pieces for each person for the second prize, and 1 piece for each person for the third prize. So how many people won the second prize?
某次数学竞赛准备了35支铅笔作为奖品发给一、二、三等奖的学生，原计划一等奖每人发给6支，二等奖每人发给3支，三等奖每人发给2支，后来改为一等将每人发13支，二等奖每人发4支，三等奖每人发1支．那么获二等奖的有多少人．
<result>3</result>