diff --git a/M2.ipynb b/M2.ipynb
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index 0000000..626fa9f
--- /dev/null
+++ b/M2.ipynb
@@ -0,0 +1,275 @@
+{
+  "nbformat": 4,
+  "nbformat_minor": 0,
+  "metadata": {
+    "colab": {
+      "provenance": [],
+      "authorship_tag": "ABX9TyN/wWCVE+FUdmhhJ6JB31hd",
+      "include_colab_link": true
+    },
+    "kernelspec": {
+      "name": "python3",
+      "display_name": "Python 3"
+    },
+    "language_info": {
+      "name": "python"
+    }
+  },
+  "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "view-in-github",
+        "colab_type": "text"
+      },
+      "source": [
+        "<a href=\"https://colab.research.google.com/github/WalterRyes/ShellSharp/blob/master/M2.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "hsiVhIV3g2Rn",
+        "outputId": "1df8285f-7fd9-4a48-d960-7c4bbedde868"
+      },
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "hola mundo\n"
+          ]
+        }
+      ],
+      "source": [
+        "print(\"hola mundo\")"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "#aritmetica\n",
+        "print(1 + 2)\n",
+        "\n",
+        "#resta\n",
+        "print(9 - 5)\n",
+        "\n",
+        "#operacion\n",
+        "print(((1 + 3) * (9 - 2) / 2) ** 2)\n",
+        "\n",
+        "#multiplicacion\n",
+        "print(3 * 2)\n"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "rypU166y3qfl",
+        "outputId": "82c64b33-e7c0-4a76-cffc-1efb86a31b2a"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "3\n",
+            "4\n",
+            "196.0\n",
+            "6\n"
+          ]
+        }
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "#variable\n",
+        "\n",
+        "# Create a variable called test_var and give it a value of 4+5\n",
+        "test_var = 4 + 5\n",
+        "\n",
+        "# Print the value of test_var\n",
+        "print(test_var)"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "QNwMmffb5Vsj",
+        "outputId": "aadf180e-5702-4c97-8462-35a541bf7acf"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "9\n"
+          ]
+        }
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "#manipulacion de variable\n",
+        "\n",
+        "# Set the value of a new variable to 3\n",
+        "my_var = 3\n",
+        "\n",
+        "# Print the value assigned to my_var\n",
+        "print(my_var)\n",
+        "\n",
+        "# Change the value of the variable to 100\n",
+        "my_var = 100\n",
+        "\n",
+        "# Print the new value assigned to my_var\n",
+        "print(my_var)\n",
+        "\n",
+        "print(my_var)\n",
+        "print(test_var)"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "jZVbKiO45pzE",
+        "outputId": "e96e5d26-9ab1-4afa-bb36-edaaf8cbb33d"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "3\n",
+            "100\n",
+            "100\n",
+            "9\n"
+          ]
+        }
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "#incremento\n",
+        "\n",
+        "# Increase the value by 3\n",
+        "my_var = my_var + 3\n",
+        "\n",
+        "# Print the value assigned to my_var\n",
+        "print(my_var)"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "3TH3n2s96KM8",
+        "outputId": "d589d23e-94aa-40fe-9dfb-e4379b43658a"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "103\n"
+          ]
+        }
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "#multiples variables\n",
+        "\n",
+        "# Create variables\n",
+        "num_years = 4\n",
+        "days_per_year = 365\n",
+        "hours_per_day = 24\n",
+        "mins_per_hour = 60\n",
+        "secs_per_min = 60\n",
+        "\n",
+        "# Calculate number of seconds in four years\n",
+        "total_secs = secs_per_min * mins_per_hour * hours_per_day * days_per_year * num_years\n",
+        "print(total_secs)"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "WRvU0xrl6VSD",
+        "outputId": "07fa2162-476c-4522-848b-03773409ade3"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "126144000\n"
+          ]
+        }
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "#horas por dias\n",
+        "\n",
+        "print(hours_per_dy)\n"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/",
+          "height": 176
+        },
+        "id": "PR6hZx2_64IT",
+        "outputId": "24cf48fc-2e72-4289-d3b5-cb85ec5c9954"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "error",
+          "ename": "NameError",
+          "evalue": "name 'hours_per_dy' is not defined",
+          "traceback": [
+            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+            "\u001b[0;31mNameError\u001b[0m                                 Traceback (most recent call last)",
+            "\u001b[0;32m<ipython-input-13-fb05abf43d76>\u001b[0m in \u001b[0;36m<cell line: 3>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0;31m#horas por dias\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mhours_per_dy\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+            "\u001b[0;31mNameError\u001b[0m: name 'hours_per_dy' is not defined"
+          ]
+        }
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "print(hours_per_day)"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "8rOtd8Nx679b",
+        "outputId": "94f08afc-0777-42b7-d0c9-45449ccc3ffe"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "24\n"
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file