5050 number cards, among which there is 1 card with the number 1 written on it, 2 cards with the number 2 written on it, 3 cards with the number 3 written on it, ..., 100 cards with the number 100 written on it. Now draw a number of cards, in order to ensure that at least 10 of the drawn cards have exactly the same number, at least how many cards must be drawn.
5050张数字卡片，其中有1张卡片上面写着数字1，有2张卡片上面写着数字2，有3张卡片上面写着数字3，…，100张卡片上面写着数字100．现从中抽取若干张，为了保证抽出的卡片至少有10张的数字完全相同，至少要抽多少张．
<gadget id="calculator">45 + 819 + 1</gadget>
<output>865</output>

<result>865</result>