There are 100 tomatoes, and they are respectively numbered 1, 2, 3, 4, ..., 100. After eating a tomato, the sum of the remaining tomato numbers is 4999. What is the number of the eaten tomato?
有100个番茄，他们分别编号是1，2，3，4，…，100．吃掉一个番茄后，剩下番茄编号之和是4999，请问被吃掉的番茄编号是多少？
<gadget id="calculator">5_050 - 4_999</gadget>
<output>51</output>

<result>51</result>