19 24 8
++++++++++++++++++++++++
+                S   S +
+  S      SSSSS   S  S +
+   S    S       S   S +
+    S    S  SSSS    S +
+    S     S         S +
+ S  S      SS       S +
+  SS                S +
+      SSS   SSS  S  S +
+     S     S     S  S +
+     S  SSS     S   S +
+     S          S   S +
+    S  SSSSSS   S   S +
+   S         S  S   S +
+  S           S     S +
+ S     SSS   S      S +
+      S     S       S +
+       SSSSS        S +
++++++++++++++++++++++++