diff --git a/caesarCipher.ipynb b/caesarCipher.ipynb
index 86737ad..c94b26e 100644
--- a/caesarCipher.ipynb
+++ b/caesarCipher.ipynb
@@ -34,13 +34,11 @@
     "\n",
     "Here is an algorithm to follow:\n",
     "\n",
-    "- outside of the calling function\n",
-    "    - Ask the user to enter the plaintext\n",
-    "    - Ask the user to enter the key\n",
-    "\n",
-    "- BEGIN caesarCipher with the **plaintext** and **key**\n",
+    "-BEGIN\n",
     "- intialise a ciphertext string to the empty string\n",
+    "- Ask the user to enter the plaintext\n",
     "- change plaintext into all CAPS\n",
+    "- Ask the user to enter the key\n",
     "- For every letter in the plaintext\n",
     "- if the letter is alphabetic\n",
     "    - convert the letter into a number (alphabet number A=0, B=1... Z=25 or ASCII number A=65 B=66...Z=90 )\n",
@@ -49,7 +47,6 @@
     "    - convert the number back into a character\n",
     "- add the character to the cipherttext\n",
     "- are there more letters in the plaintext? \n",
-    "- return the ciphertext to the calling program\n",
     "- END\n"
    ]
   },
@@ -102,20 +99,20 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "65,66,67,32,88,89,90,"
+      "84,72,73,83,32,73,83,32,65,32,83,84,82,73,78,71,32,65,76,76,32,73,78,32,85,80,80,69,82,67,65,83,69,"
      ]
     }
    ],
    "source": [
     "# changing a character into ascii values:\n",
-    "myString = \"abc xyz\".upper()\n",
+    "myString = \"this is a string all in uppercase\".upper()\n",
     "for i in range(len(myString)):\n",
     "    asciiNum = ord (myString[i])\n",
     "    print(asciiNum, end= \",\")"
@@ -173,131 +170,75 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Caeser Cipher\n"
+    "## Caser Cipher\n"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 36,
    "metadata": {},
    "outputs": [],
    "source": [
-    "#function that will create ciphertext from plaintext and a key\n",
+    "import string\n",
     "def caesarCipher(plaintext, key):\n",
+    "    key=int(key)\n",
+    "    alpha = string.ascii_uppercase\n",
     "    ciphertext = \"\"\n",
-    "    \n",
+    "    message = plaintext.upper()\n",
+    "    newMessage = \"\"\n",
+    "    for i in range(0,len(message)):\n",
+    "        if message[i] in alpha: # use the in operator\n",
+    "            newMessage += message[i]\n",
+    "            asciiNum =int(ord (newMessage[i]))+key\n",
+    "            if asciiNum>90:\n",
+    "                asciiNum-=26\n",
+    "            ciphertext+=chr(asciiNum)\n",
+    "        elif message[i] not in alpha:\n",
+    "            newMessage += message[i]\n",
     "    #implement caesar cipher here\n",
-    "    \n",
-    "    \n",
-    "    return ciphertext\n",
     "\n",
-    "    "
+    "\n",
+    "    return ciphertext\n"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 37,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "your encrypted message =  \n"
+      "your encrypted message =  €tuumqo~q€ym…",
+      "ym…",
+      "\n"
      ]
     }
    ],
    "source": [
     "#test your caeserCipher function here\n",
-    "secret = caesarCipher(\"this is a secret\", 9) # this should return : CQRB RB J BNLANC\n",
+    "secret = caesarCipher(\"this is a secret maymay \", 70) # this should return : CQRB RB J BNLANC\n",
     "print(\"your encrypted message = \", secret)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 32,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "your encrypted message =  \n"
+      "your encrypted message =  CQRBRBJBNLANC\n"
      ]
     }
    ],
    "source": [
-    "secret = caesarCipher(\"this is a secret\", 22) # should return PDEO EO W OAYNAP\n",
+    "secret = caesarCipher(\"this is a secret\", 9) # should return PDEO EO W OAYNAP\n",
     "print(\"your encrypted message = \", secret)"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 7,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "please enter your message to encodehello world\n",
-      "please enter the key - between 1 and 25100\n",
-      "that was not a valid key range, please try again\n",
-      "please enter the key - between 1 and 25r\n",
-      "you did not enter a number, the key must be a number, try again\n",
-      "please enter the key - between 1 and 2512\n",
-      "that was not a valid key range, please try again\n",
-      "please enter the key - between 1 and 2512\n",
-      "that was not a valid key range, please try again\n",
-      "please enter the key - between 1 and 25\n",
-      "you did not enter a number, the key must be a number, try again\n",
-      "please enter the key - between 1 and 25\n",
-      "you did not enter a number, the key must be a number, try again\n"
-     ]
-    },
-    {
-     "ename": "KeyboardInterrupt",
-     "evalue": "",
-     "output_type": "error",
-     "traceback": [
-      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
-      "\u001b[0;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
-      "\u001b[0;32m/usr/local/lib/python3.5/dist-packages/ipykernel/kernelbase.py\u001b[0m in \u001b[0;36m_input_request\u001b[0;34m(self, prompt, ident, parent, password)\u001b[0m\n\u001b[1;32m    729\u001b[0m             \u001b[0;32mtry\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 730\u001b[0;31m                 \u001b[0mident\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mreply\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0msession\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mrecv\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mstdin_socket\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;36m0\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    731\u001b[0m             \u001b[0;32mexcept\u001b[0m \u001b[0mException\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
-      "\u001b[0;32m/usr/local/lib/python3.5/dist-packages/jupyter_client/session.py\u001b[0m in \u001b[0;36mrecv\u001b[0;34m(self, socket, mode, content, copy)\u001b[0m\n\u001b[1;32m    795\u001b[0m         \u001b[0;32mtry\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 796\u001b[0;31m             \u001b[0mmsg_list\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0msocket\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mrecv_multipart\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mmode\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcopy\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mcopy\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    797\u001b[0m         \u001b[0;32mexcept\u001b[0m \u001b[0mzmq\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mZMQError\u001b[0m \u001b[0;32mas\u001b[0m \u001b[0me\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
-      "\u001b[0;32m/usr/local/lib/python3.5/dist-packages/zmq/sugar/socket.py\u001b[0m in \u001b[0;36mrecv_multipart\u001b[0;34m(self, flags, copy, track)\u001b[0m\n\u001b[1;32m    394\u001b[0m         \"\"\"\n\u001b[0;32m--> 395\u001b[0;31m         \u001b[0mparts\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m[\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mrecv\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mflags\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcopy\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mcopy\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtrack\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mtrack\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    396\u001b[0m         \u001b[0;31m# have first part already, only loop while more to receive\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
-      "\u001b[0;32mzmq/backend/cython/socket.pyx\u001b[0m in \u001b[0;36mzmq.backend.cython.socket.Socket.recv (zmq/backend/cython/socket.c:7683)\u001b[0;34m()\u001b[0m\n",
-      "\u001b[0;32mzmq/backend/cython/socket.pyx\u001b[0m in \u001b[0;36mzmq.backend.cython.socket.Socket.recv (zmq/backend/cython/socket.c:7460)\u001b[0;34m()\u001b[0m\n",
-      "\u001b[0;32mzmq/backend/cython/socket.pyx\u001b[0m in \u001b[0;36mzmq.backend.cython.socket._recv_copy (zmq/backend/cython/socket.c:2344)\u001b[0;34m()\u001b[0m\n",
-      "\u001b[0;32m/usr/local/lib/python3.5/dist-packages/zmq/backend/cython/checkrc.pxd\u001b[0m in \u001b[0;36mzmq.backend.cython.checkrc._check_rc (zmq/backend/cython/socket.c:9621)\u001b[0;34m()\u001b[0m\n",
-      "\u001b[0;31mKeyboardInterrupt\u001b[0m: ",
-      "\nDuring handling of the above exception, another exception occurred:\n",
-      "\u001b[0;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
-      "\u001b[0;32m<ipython-input-7-f8bf7913f29c>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      5\u001b[0m \u001b[0;32mwhile\u001b[0m \u001b[0;32mnot\u001b[0m \u001b[0mvalid\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      6\u001b[0m     \u001b[0;32mtry\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 7\u001b[0;31m         \u001b[0mkey\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0minput\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"please enter the key - between 1 and 25\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      8\u001b[0m         \u001b[0;32mif\u001b[0m \u001b[0mkey\u001b[0m \u001b[0;32mnot\u001b[0m \u001b[0;32min\u001b[0m \u001b[0;34m[\u001b[0m\u001b[0;36m1\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m25\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      9\u001b[0m             \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"that was not a valid key range, please try again\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
-      "\u001b[0;32m/usr/local/lib/python3.5/dist-packages/ipykernel/kernelbase.py\u001b[0m in \u001b[0;36mraw_input\u001b[0;34m(self, prompt)\u001b[0m\n\u001b[1;32m    703\u001b[0m             \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m_parent_ident\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    704\u001b[0m             \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m_parent_header\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 705\u001b[0;31m             \u001b[0mpassword\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0;32mFalse\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    706\u001b[0m         )\n\u001b[1;32m    707\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
-      "\u001b[0;32m/usr/local/lib/python3.5/dist-packages/ipykernel/kernelbase.py\u001b[0m in \u001b[0;36m_input_request\u001b[0;34m(self, prompt, ident, parent, password)\u001b[0m\n\u001b[1;32m    733\u001b[0m             \u001b[0;32mexcept\u001b[0m \u001b[0mKeyboardInterrupt\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    734\u001b[0m                 \u001b[0;31m# re-raise KeyboardInterrupt, to truncate traceback\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 735\u001b[0;31m                 \u001b[0;32mraise\u001b[0m \u001b[0mKeyboardInterrupt\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    736\u001b[0m             \u001b[0;32melse\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    737\u001b[0m                 \u001b[0;32mbreak\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
-      "\u001b[0;31mKeyboardInterrupt\u001b[0m: "
-     ]
-    }
-   ],
-   "source": [
-    "# now test the function with user input (think about your test cases!!)\n",
-    "plaintext = input(\"please enter your message to encode\")\n",
-    "valid = False # assume the user does not enter a validkey - validate!!\n",
-    "#validate that the key is 1) a number and 2) within the valid range 1-25\n",
-    "while not valid:\n",
-    "    try:\n",
-    "        key = int(input(\"please enter the key - between 1 and 25\"))\n",
-    "        if key not in range(1,25]:\n",
-    "            print(\"that was not a valid key range, please try again\")\n",
-    "        else:\n",
-    "            valid=True\n",
-    "    except ValueError:\n",
-    "        print(\"you did not enter a number, the key must be a number, try again\")\n",
-    "\n",
-    "ciphertext = caesarCipher(plaintext, key)\n",
-    "print(\"your encoded message is:\", ciphertext)\n",
-    "        "
-   ]
   }
  ],
  "metadata": {