diff --git a/labs01/podstawy.ipynb b/labs01/podstawy.ipynb
index 6146f07..cd66194 100644
--- a/labs01/podstawy.ipynb
+++ b/labs01/podstawy.ipynb
@@ -30,6 +30,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -43,6 +44,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -76,6 +78,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -110,6 +113,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -130,6 +134,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -146,6 +151,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -177,6 +183,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "slide"
     }
@@ -207,6 +214,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -221,6 +229,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -235,6 +244,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -260,6 +270,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -291,6 +302,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -320,6 +332,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -348,6 +361,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -362,6 +376,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -387,6 +402,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -415,6 +431,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -433,6 +450,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -458,6 +476,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -472,6 +491,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -509,6 +529,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -526,6 +547,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -553,6 +575,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -570,6 +593,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -595,13 +619,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {
     "slideshow": {
      "slide_type": "fragment"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Wiadomość\n"
+     ]
+    }
+   ],
    "source": [
     "napis = \"Wiadomość\"\n",
     "print(napis)"
@@ -609,13 +641,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "metadata": {
     "slideshow": {
      "slide_type": "slide"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "W 87\n",
+      "i 105\n",
+      "a 97\n",
+      "d 100\n",
+      "o 111\n",
+      "m 109\n",
+      "o 111\n",
+      "ś 347\n",
+      "ć 263\n"
+     ]
+    }
+   ],
    "source": [
     "for znak in napis:\n",
     "    print(znak, ord(znak))"
@@ -625,6 +673,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "slide"
     }
@@ -641,6 +690,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "slide"
     }
@@ -655,6 +705,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
@@ -669,6 +720,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "collapsed": true,
     "slideshow": {
      "slide_type": "fragment"
     }
diff --git a/labs02/task07.py b/labs02/task07.py
index 80cbd37..a1f3db1 100644
--- a/labs02/task07.py
+++ b/labs02/task07.py
@@ -6,7 +6,10 @@ Napisz funkcję char_sum, która dla zadanego łańcucha zwraca
 sumę kodów ASCII znaków.
 """
 def char_sum(text):
-    pass
+    suma = 0
+    for element in text:
+        suma += ord(element)
+    return(suma)
 
 def tests(f):
     inputs = [["this is a string"], ["this is another string"]]