diff --git a/rotation.cpp b/rotation.cpp
index f96d143..dd3dc05 100644
--- a/rotation.cpp
+++ b/rotation.cpp
@@ -233,6 +233,7 @@ uint16_t* generate_padding_table(Image const& src,
 }
 
 void print_padding_table(uint16_t const* padding_table,
+                         uint16_t const* border_table,
                          unsigned int size)
 {
   cout << "Padding table:" << endl;
@@ -240,23 +241,32 @@ void print_padding_table(uint16_t const* padding_table,
   for (unsigned int i = 0; i < size; ++i)
   {
     int left_padding = padding_table[i];
+    int left_border = border_table[i];
     int right_padding = padding_table[size - 1 - i];
-    int core_pixels = size - left_padding - right_padding;
+    int right_border = border_table[size - 1 - i];
+    int core_pixels = size - left_padding - right_padding - left_border - right_border;
 
     if (core_pixels < 0)
     {
-      cout << "Too much padding at line " << i << endl;
-      cout << "  left padding = " << left_padding << endl;
+      cout << "Too much padding + border at line " << i << endl;
+      cout << "  left padding  = " << left_padding << endl;
+      cout << "  left border   = " << left_border << endl;
       cout << "  right padding = " << right_padding << endl;
-      cout << "  max size = " << size << endl;
+      cout << "  right border  = " << right_border << endl;
+      cout << "  total         = " << left_padding + left_border + right_border + right_padding << endl;
+      cout << "  max size      = " << size << endl;
       abort();
     }
 
     cout << "  [";
     for (int j = 0; j < left_padding; ++j)
       cout << " ";
+    for (int j = 0; j < left_border; ++j)
+      cout << ".";
     for (int j = 0; j < core_pixels; ++j)
       cout << "x";
+    for (int j = 0; j < right_border; ++j)
+      cout << ".";
     for (int j = 0; j < right_padding; ++j)
       cout << " ";
     cout << "]" << endl;