<?php
//read input
$x1 = floatval(readline());
$y1 = floatval(readline());
$x2 = floatval(readline());
$y2 = floatval(readline());

$sideX = abs($x2 - $x1); // calculate x
$sideY = abs($y1 - $y2); // calculate y

$area = $sideX * $sideY; // calculate area
$perimeter = 2 * $sideX + 2 * $sideY; // calculate perimeter

echo number_format($area, 2, ".", "") . PHP_EOL; //print area
printf("%.2f",$perimeter); //print perimeter