import java.util.*;
public class Solution {
public int solution(int[][] sizes) {
int maxWidth = 0;
int maxHeight = 0;
for (int[] size : sizes) {
int tempMax = Math.max(size[0], size[1]);
int tempMin = Math.min(size[0], size[1]);
maxWidth = Math.max(maxWidth, tempMax);
maxHeight = Math.max(maxHeight, tempMin);
}
return maxWidth * maxHeight;
}
}