diff --git a/arrays_strings/remove_chars/remove_chars_solution.ipynb b/arrays_strings/remove_chars/remove_chars_solution.ipynb
index 693a9bc..823661a 100644
--- a/arrays_strings/remove_chars/remove_chars_solution.ipynb
+++ b/arrays_strings/remove_chars/remove_chars_solution.ipynb
@@ -108,7 +108,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 2,
    "metadata": {
     "collapsed": false,
     "deletable": true,
@@ -144,7 +144,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "metadata": {
     "collapsed": false,
     "deletable": true,
@@ -184,7 +184,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 4,
    "metadata": {
     "collapsed": false,
     "deletable": true,
@@ -203,17 +203,6 @@
    "source": [
     "%run -i test_remove_chars.py"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {
-    "collapsed": true,
-    "deletable": true,
-    "editable": true
-   },
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {