diff --git a/README.md b/README.md
index cb26765..14c7dc2 100644
--- a/README.md
+++ b/README.md
@@ -2317,7 +2317,7 @@ def get_border(screen):
     from collections import namedtuple
     P = namedtuple('P', 'x y')
     height, width = screen.getmaxyx()
-    return P(width-1, height-1)
+    return P(width - 1, height - 1)
 
 if __name__ == '__main__':
     main()
diff --git a/index.html b/index.html
index c3df522..f2c2ead 100644
--- a/index.html
+++ b/index.html
@@ -1996,7 +1996,7 @@ pyplot.clf()                                   <span class="hljs-comment"># Clea
     <span class="hljs-keyword">from</span> collections <span class="hljs-keyword">import</span> namedtuple
     P = namedtuple(<span class="hljs-string">'P'</span>, <span class="hljs-string">'x y'</span>)
     height, width = screen.getmaxyx()
-    <span class="hljs-keyword">return</span> P(width<span class="hljs-number">-1</span>, height<span class="hljs-number">-1</span>)
+    <span class="hljs-keyword">return</span> P(width - <span class="hljs-number">1</span>, height - <span class="hljs-number">1</span>)
 
 <span class="hljs-keyword">if</span> __name__ == <span class="hljs-string">'__main__'</span>:
     main()