On the day of the Double Ninth Festival, 19 elderly people came to the Longevity Teahouse to taste tea, and their ages happened to be 19 consecutive natural numbers. The sum of the ages of these 19 old people is exactly 1710 years old. How old is the oldest person among them?
重阳节那天，长寿茶馆来了19位老人品茶，他们的年龄恰好是19个连续的自然数．这19位老人的年龄之和正好是1710岁．其中年龄最大的老人今年是多少岁？
<gadget id="calculator">1_710 / 19</gadget>
<output>90</output>

<gadget id="calculator">90 + 9</gadget>
<output>99</output>

<result>99</result>