return num % 10;
Seede 的收费方式与其他家不同，21 元可以购买 50 水滴，每次生成消耗 2 水滴。
，这一点在搜狗输入法2026中也有详细论述
"We don't know where they go, but they disappear for about 10 days, and then they'll come back again. And without the CCTV, we never knew that."
// console.log(nextGreaterElement([2,4], [1,2,3,4])); // 预期输出：[3,-1]