def required_preamble(title: str, author: str, date: str):
    """
    Every output must contain this in the preamble
    """
    return [r"\documentclass{article}",
    r"\usepackage[utf8]{inputenc}",
    r"\usepackage{amsthm}",
    r"\usepackage{breqn}",
    r"\usepackage{enumitem}",
    r"\usepackage{tcolorbox}",
    r"\usepackage{hyperref}",
    r"\title{"+title+"}",
    r"\author{"+author+"}",
    r"\date{"+date+"}"]