$\color{blue}一\color{purple}个\color{Orangered}会\color{yellowgreen}编\color{Gold}程\color{BlueViolet}的\color{Orchid}小\color{Magenta}喵\color{Orchid}喵$

$\small\texttt{\color{#FA4129}本}\huge\texttt{\color{#FE9019}人}_{\small\texttt{\color{#FFE304}的}^{\large\texttt{\color{#FFEC01}萌\color{#FFF900}新}\small\texttt{\color{#FCFB03}Q\color{#F8FB07}A\color{#F1FB0B}Q}}}^{\large\texttt{\color{#FFB511}是}{\small\texttt{\color{#FFDC07}刚\color{#FFEF00}学}\large\texttt{\color{#FFF600}O\color{#FFFA00}I}}}\huge\texttt{\color{#E6F911}但\color{#92E82F}是}^{\large\texttt{\color{#39D54B}即}{\small\texttt{\color{#03C767}使}}}_{\normalsize\text{\color{#07C964}是\color{#00C789}这\color{#00C7A5}样}}\texttt{\color{#00CBC6}我\color{#00D0EB}也}^{\small\texttt{\color{#00D0F2}要}\normalsize\texttt{\color{#00D0F6}用}\texttt{\color{#03BEF4}蒟}_{\texttt{\color{#04AAEF}蒻}\large\texttt{\color{#078DE4}的}}}_{\scriptsize\texttt{\color{#01CDF6}声\color{#03C2F5}音\color{#04B4F2}大\color{#04A7EE}声\color{#0791E6}喊\color{#0A7BDD}出}}\mathcal{\color{#125BCD}IOI\color{#3D2AB5}AK\color{#A011AD}ME}$

$$\color{red}{\sqrt[x]{a + \sum^x_a}} + \color{blue}{\frac{\sqrt[r]{\frac{r}{x}}}{\sum^\frac{x}{i}}}+\color{purple}{\iint\limits_A f(x,y)\;} \times \color{gold}{\begin{pmatrix} \alpha& \beta^{*}\\ \gamma^{*}& \delta \end{pmatrix}} \div \color{brown}{\frac{1+\frac{a}{b}}{1+\frac{1}{1+\frac{1}{a}}}} = \color{black}{？} $$