Shengli Primary School carried out hand-in-hand activities. The students of the whole school donated 1,450 books to the disaster area for the first time, 1,684 books for the second time, and 100 more books for the third time than the first time. How many books were donated in total for the three times?
胜利小学开展手拉手活动，全校同学为灾区第一次赠书1450本，第二次赠书1684本，第三次比第一次多赠100本，三次一共赠书多少本？
<gadget id="calculator">1_450 + 1_450 + 100 + 1_684</gadget>
<output>4_684</output>

<result>4_684</result>