function solution(brown, yellow) {
let totalSpace = brown + yellow;
for (let i = Math.floor(totalSpace / 2); i > 0; i--) {
if (totalSpace % i !== 0) continue;
let horizontal = i;
let vertical = totalSpace / i;
if ((horizontal - 2) * (vertical - 2) === yellow)
return [horizontal, vertical];
}
}