function solution(sizes) {
let max_arr = [];
let min_arr = [];
for(let i = 0; i < sizes.length; i++)
{
max_arr.push(Math.max(sizes[i][0], sizes[i][1]))
min_arr.push(Math.min(sizes[i][0], sizes[i][1]))
}
max_arr.sort((a,b) => b - a)
min_arr.sort((a,b) => b - a)
return max_arr[0] * min_arr[0]
}