@@ -0,0 +1,156 @@
+package net.tlahmann.gdg.creation.helper;%0A%0Apublic class Tuple%3CX, Y%3E %7B%0A%09public X x;%0A%09public Y y;%0A%0A%09public Tuple(X x, Y y) %7B%0A%09%09this.x = x;%0A%09%09this.y = y;%0A%09%7D%0A%7D%0A

Add Tupel class to hold min and max value