Pleasant Goat and Boiling Goat start their new jobs on the same day. Pleasant Goat's work schedule is 3 days of work followed by 1 day of rest, while Boiling Goat's work schedule is 7 days of work followed by 3 days of rest. How many days did they rest together in the first 1000 days.
喜羊羊与沸羊羊在同一天开始他们的新工作，喜羊羊的工作日程表是3天工作接着1天休息，沸羊羊的工作日程表是7天工作接着3天休息．在前1000天中有多少天他们共同休息．
<gadget id="calculator">1_000 / 10</gadget>
<output>100</output>

<result>100</result>