import java.util.*; import java.math.*; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); while (in.hasNext()) { // 注意 while 处理多个 case int n = in.nextInt(); int x_max = Integer.MIN_VALUE; int y_max = Integer.MIN_VALUE; int x_min = Integer.MAX_VALUE; int y_min = Integer.MAX_VALUE; for(int i=0;i<n;i++){ int x = in.nextInt(); // System.out.println(x); int y = in.nextInt(); x_max = (int)Math.max(x_max,x); x_min = (int)Math.min(x_min,x); y_max = (int)Math.max(y_max,y); y_min = (int)Math.min(y_min,y); } // System.out.println(y_max); int side = Math.max((x_max-x_min),(y_max-y_min)); System.out.println(side*side); } } }