using System;

public class Program

{

    static void Main(string[] args);

    int x1 = int.Parse(Console.ReadLine());

    int y1 = int.Parse(Console.ReadLine());

    int x2 = int.Parse(Console.Readline());

    int y2 = int.Parse(Console.ReadLine());

    int lenght = Math.Abs(x1-x2);

    int height = Math.Abs(y1-y2);

    int area = lenght*height;

    int perimeter = 2 *(lenght+height);

    Console.WriteLine($"{area:F2}cm2);

    Console.WriteLine($"perimeter:F2}cm");

​

     }

​