def invert_expression(exp):
    """Inverts and returns logical operator expressions
       ex. "<" -> ">="

    Args:
        exp (str): original conditional expression

    Returns:
        str: inverted string representation of original conditional expression
    """
    if ">=" in exp:
        return exp.replace(">=", "<")
    elif "<=" in exp:
        return exp.replace("<=", ">")
    elif ">" in exp:
        return exp.replace(">", "<=")
    elif "<" in exp:
        return exp.replace("<", ">=")
    elif "True" in exp:
        return exp.replace("True", "False")
    elif "False" in exp:
        return exp.replace("False", "True")
    else:
        return exp