diff --git a/README.md b/README.md
index fa0237d..411d3d3 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # OpenBootCampPython
 Repository to store Python boot camp.
+
+* Exercise 2: Modifica la variable del anterior ejercicio en la consola de python y después muestrala por consola para ver la modificación de la variable. Tienes que subir capturas de pantalla en una carpeta comprimida zip.
+
+  * Screenshot in folder "src/ExerciseTwo/ejercicio2.png" on branch ExerciseTwo.
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..ee2bf11
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+-i https://pypi.org/simple
+setuptools==65.5.0 ; python_version >= '3.7'
+wheel==0.38.0
diff --git a/src/exercisetwo/ejercicio2.png b/src/exercisetwo/ejercicio2.png
new file mode 100644
index 0000000..890b172
Binary files /dev/null and b/src/exercisetwo/ejercicio2.png differ
diff --git a/src/exercisetwo/helloworld.py b/src/exercisetwo/helloworld.py
new file mode 100644
index 0000000..c1834c1
--- /dev/null
+++ b/src/exercisetwo/helloworld.py
@@ -0,0 +1,8 @@
+def helloworld(a='Hola mundo!'):
+    """Script that show in terminal the variable a
+    :param a: parameter to show in terminal, default to 'Hola mundo!'
+    :type a: str
+    :return: None
+    :rtype: NoneType
+    """
+    print(a)
diff --git a/src/main.py b/src/main.py
new file mode 100644
index 0000000..85ba712
--- /dev/null
+++ b/src/main.py
@@ -0,0 +1,19 @@
+import sys
+from src.exercisetwo.helloworld import helloworld
+
+
+def main(argv):
+    """Main script for exercise two
+    :param argv: list of arguments for helloworld script
+    :type argv: list(str)
+    :return: None
+    :rtype: NoneType
+    """
+    if len(argv) == 0:
+        helloworld()
+    else:
+        helloworld(argv[0])
+
+
+if __name__ == '__main__':
+    main(sys.argv[1:])