我有乳胶代码：
\documentclass[12pt]{article}
\usepackage{wrapfig}
\usepackage{chngcntr}
\counterwithout{paragraph}{section}
\renewcommand{\theparagraph}{\arabic{paragraph}}
\setcounter{secnumdepth}{4}
\usepackage{titlesec}
\titleformat{\paragraph}[runin]
{\normalfont\bfseries}
{\theparagraph.}
{\wordsep}{}
\titlespacing{\paragraph}{0pt}{3.25ex plus 1ex minus .2ex}{\wordsep}
\begin{document}
\section{First section}
\paragraph{}
San Francisco is a city in California. See paragraph. San Francisco is a city in California. See paragraph.
San Francisco is a city in California. See paragraph. San Francisco is a city in California. See paragraph.
\subsection{A subsection}
\begin{wrapfigure}{r}{35mm}
\fbox{\rule{3cm}{3cm}}
\end{wrapfigure}
\paragraph{}
San Francisco is a city in California. See paragraph. San Francisco is a city in California. See paragraph.
San Francisco is a city in California. See paragraph. San Francisco is a city in California. See paragraph. San Francisco is a city in California. See paragraph. San Francisco is a city in California. See paragraph.
San Francisco is a city in California. See paragraph. San Francisco is a city in California. See paragraph.
\paragraph{}
San Francisco is a city in California. See paragraph
San Francisco is a city in California. See paragraph
San Francisco is a city in California. See paragraph.
\end{document}
这让我有了这样的看法：
我一直想得到如下图所示的结果，但没有成功。我请求帮助
