drawing figures using only `drawPoint(x, y)` may be interesting.
a function to draw a point (x, y) on a plane.

u may discover the equations of a line or trig functions.

sum of odd numbers are perfect squares

1 + 3 + … + (2n - 1) = n²
https://commons.wikimedia.org/wiki/File:Square_number_16_as_sum_of_gnomons.svg

the biggest number is a "contradiction".

u may think of Rayo's number or Large Number Garden Number.
but they're still finite.

mathematicians consider infinity a number.

i've been stuck for a long time bc i don't get the Euclidean algorithm.
should've skipped it.