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+<html> 
+   <head>
+    <meta http-equiv="X-UA-Compatible" content="IE=edge"/> 
+     <title>IGEV</title> 
+     <script type='text/javascript' src='https://www.x3dom.org/download/x3dom.js'> </script> 
+     <link rel='stylesheet' type='text/css' href='https://www.x3dom.org/download/x3dom.css'></link> 
+   </head> 
+   <body> 
+     <h1>Tarea 3</h1> 
+     <p> 
+       Molecula. 
+     </p> 
+	 <x3d width='500px' height='500px'> 
+	   <scene> 
+
+		<transform translation='1.8 .2 0'> 
+		  <shape> 
+			 <appearance> 
+			   <material diffuseColor='0 0 1'></material> 
+			 </appearance> 
+			 <sphere></sphere> 
+		  </shape> 
+		</transform> 
+		<transform translation='0 .2 3.4'> 
+		  <shape> 
+			 <appearance> 
+			   <material diffuseColor='0 0 1'></material> 
+			 </appearance> 
+			 <sphere></sphere> 
+		  </shape> 
+		</transform> 
+		<transform translation='-1.8 .2 0'> 
+		  <shape> 
+			 <appearance> 
+			   <material diffuseColor='0 0 1'></material> 
+			 </appearance> 
+			 <sphere></sphere> 
+		  </shape> 
+		</transform>
+
+		<transform translation='0 1.81 1.3'> 
+		  <shape> 
+			 <appearance> 
+			   <material diffuseColor='1 0 1'></material> 
+			 </appearance> 
+			 <sphere radius="1.22"></sphere> 
+		  </shape> 
+		</transform>
+
+		<Transform translation="1 1 .6" rotation="0 1 0 2.2"> 
+		<Transform  rotation="1 0 0 -.9">
+      <Shape>
+        <Appearance>
+            <Material diffuseColor="#33FF66"></Material>
+        </Appearance>
+        <Cylinder radius="0.3" height="0.66"></Cylinder>
+      </Shape>
+		</Transform>
+		</transform>
+		<Transform translation="0 .9 2.48" rotation="1 0 0 -.9">
+      <Shape>
+        <Appearance>
+            <Material diffuseColor="#33FF66"></Material>
+        </Appearance>
+        <Cylinder radius="0.3" height="0.66"></Cylinder>
+      </Shape>
+		</Transform>
+		<Transform translation="-1 1 .6" rotation="0 1 0 -2.2"> 
+		<Transform  rotation="1 0 0 -.9">
+      <Shape>
+        <Appearance>
+            <Material diffuseColor="#33FF66"></Material>
+        </Appearance>
+        <Cylinder radius="0.3" height="0.66"></Cylinder>
+    	</Shape>
+		</Transform>
+		</Transform>
+
+	   </scene> 
+	</x3d> 
+   </body> 
+</html>