测试

$$

\sqrt{2}

$$
$\sqrt{2}$
1$\sqrt{2}$1
s$\sqrt{2}$d
的$\sqrt{2}$的

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后排兜售爆米花炸鸡可乐，前往前排需要翻过1733排座位
$$
{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\huge但是灌水区已经不在了}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
$$

于是，只要判断是否有$K\le\int{\frac{R-K}{x-1}}+\int{\frac{B-K}{y-1}}$。

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