<template>
        <form>
            <label for=inputs>number of inputs</label>
            <input type=number min=1 value=3 name=inputs>
            <label for=outputs>number of outputs</label>
            <input type=number min=1 value=2 name=outputs>
        </form>
        <table>
            <thead>
                {subroutine}
                <tr>
                    {from 0 as input to inputs repeat}
                    <th>{input}</th>
                    {from 0 as output to outputs repeat}
                    <th>{output}</th>
                </tr>
            </thead>
            <tbody>
                {from 0 to 2**inputs repeat}
                <tr>
                    {do subroutine}
                </tr>
            </tbody>
        </table>
    </template>