\documentclass{article}
\usepackage[vlined,ruled,linesnumbered]{algorithm2e}
\usepackage{algpseudocode}


\SetKwInput{KwInput}{Input}
\SetKwInput{KwOutput}{Output}
\SetKwInput{KwData}{Data}

\begin{document}



\begin{algorithm}
\caption{Example code}
\KwInput{Your Input}
\KwOutput{Your output}
\KwData{Testing set $x$}

$\sum_{i=1}^{\infty} := 0$
\tcp*{this is a comment}
\tcc{Now this is an if...else conditional loop}
\If{Condition 1}{
Do Something \\
\If{sub-condition}{
Do a lot
}
}\ElseIf{Condition 2}{
Do Otherwise
\tcc{Now this is a for loop}
\For{sequence}{
loop instructions
}
}
\Else{
Do the rest
}
\tcc{Now this is a While loop}
\While{Condition}{
do something
}

\end{algorithm}

\end{document}