diff --git a/learning_python3.md b/learning_python3.md
index 8424ddc..e665d41 100644
--- a/learning_python3.md
+++ b/learning_python3.md
@@ -444,6 +444,41 @@ What about one that takes floating point numbers?
 
 * [realpython](https://realpython.com/python-conditional-statements/) conditional logic
 
+# Coding challenge - Currency converter
+
+I would like you to write a program that converts EUR to DOLLAR.
+You should do this in a **new** python file.
+I suggest you call it `euro_to_dollar.py` or something that makes sense to you.
+The result of this program *could* be as follows.
+
+```bash
+➜  python_course_doc git:(master) ✗ python3 test.py                  
+How much EUR would you like to convert into DOLLAR? 140
+140 EUR is 159.6 DOLLAR
+➜  python_course_doc git:(master) ✗ python3 test.py
+How much EUR would you like to convert into DOLLAR? blablabla
+That's not a number I understand...
+➜  python_course_doc git:(master) ✗ 
+```
+
+<details>
+  <summary>Spoiler warning</summary>
+
+```python
+result = input("How much EUR would you like to convert into DOLLAR? ")
+
+rate = 1.14
+
+if result.isdigit():
+    eur = int(result)
+    dollar = eur * rate
+    print("{} EUR is {} DOLLAR".format(eur, dollar))
+else:
+    print("That's not a number I understand...")
+```
+
+</details>
+
 # Coding challenge - Celsius to Fahrenheit converter
 
 Your first challenge!
@@ -496,42 +531,6 @@ else:
 
 </details>
 
-# Coding challenge - Currency converter
-
-I would like you to write a program that converts EUR to DOLLAR.
-You should do this in a **new** python file.
-I suggest you call it `euro_to_dollar.py` or something that makes sense to you.
-The result of this program *could* be as follows.
-
-```bash
-➜  python_course_doc git:(master) ✗ python3 test.py                  
-How much EUR would you like to convert into DOLLAR? 140
-140 EUR is 159.6 DOLLAR
-➜  python_course_doc git:(master) ✗ python3 test.py
-How much EUR would you like to convert into DOLLAR? blablabla
-That's not a number I understand...
-➜  python_course_doc git:(master) ✗ 
-```
-
-<details>
-  <summary>Spoiler warning</summary>
-
-```python
-result = input("How much EUR would you like to convert into DOLLAR? ")
-
-rate = 1.14
-
-if result.isdigit():
-    eur = int(result)
-    dollar = eur * rate
-    print("{} EUR is {} DOLLAR".format(eur, dollar))
-else:
-    print("That's not a number I understand...")
-```
-
-</details>
-
-
 ## Some links to read up on
 
 * how to convert string to float, Look at the response here: [str.isfloat()](https://stackoverflow.com/questions/736043/checking-if-a-string-can-be-converted-to-float-in-python)?