diff --git a/recipe.md b/recipe.md
index a8b51a4d..ea014023 100644
--- a/recipe.md
+++ b/recipe.md
@@ -4,9 +4,15 @@
 - 2 cups all-purpose flour
 - 1 3/4 cups granulated sugar
 - 3/4 cup unsweetened cocoa powder
+- 1/2 tsp ground cinnamon
 - ...
 
 ## Instructions:
-1. Preheat the oven to 350°F (175°C).
-2. In a large bowl, whisk together the flour, sugar, and cocoa powder.
-3. ...
\ No newline at end of file
+1. Preheat the oven to 375°F (190°C).
+2. In a large bowl, whisk together the flour, sugar, cocoa powder, and ground cinnamon.
+3. ...
+
+## Additional Directions by Bob:
+4. Add a tablespoon of instant coffee to the dry ingredients for a hint of mocha flavor.
+5. Mix in a handful of chocolate chunks for extra indulgence.
+6. Line the bottom of the baking pan with parchment paper for easy cake removal.
diff --git a/src/DataTypes.java b/src/DataTypes.java
index 4f807c1f..519feb7f 100644
--- a/src/DataTypes.java
+++ b/src/DataTypes.java
@@ -1,12 +1,15 @@
 import java.util.List;
 
 public class DataTypes {
-    // TODO TASK 1: fix this code so that it passes the test in DataTypesTest.java
+    // TASK 1: fix this code so that it passes the test in DataTypesTest.java
+    public static void main(String[] args) {
+    }
+
     public static long sum(List<Integer> numbers) {
 
-        int s = 0;
+        long s = 0;
         // below is a "foreach" loop which iterates through numbers
-        for (int x : numbers) {
+        for (long x : numbers) {
             s += x;
         }
         return s;
diff --git a/test/DataTypesTest.java b/test/DataTypesTest.java
index 42b9ef96..ac51353b 100644
--- a/test/DataTypesTest.java
+++ b/test/DataTypesTest.java
@@ -8,6 +8,9 @@
 
 public class DataTypesTest {
 
+    public static void main(String[] args) {
+    }
+
     @Test(timeout = 1000)
     /**
      * Test that DataTypes.sum returns the correct value for