We can test ranges of values for i and j.
We grow weary of red and white.
Top bit
Make the top four lines green.
test text
Napier Triangle
Make the lower left triangle red.
test text
Thick stripe
Make a thick vertical stripe.
test text
Thick diagonal stripe
Make a thick diagonal stripe.
test text
Thick diagonal stripe
We take this exercise just a little too far.
Make a thick diagonal cross.
test text