fix(curriculum): typos in DC 111 & 117 (#64053)

curriculum/challenges/english/blocks/daily-coding-challenges-javascript/69162d64f96574d9bb629efc.md

@@ -13,7 +13,7 @@ Given a matrix (array of arrays) that includes the location of the ball (`2`), a
 
 - The ball always moves in a straight line.
 - The movement direction is determined by how the ball moved from `1` to `2`.
-- The edges of the matrix are considered walls. If the balls hits a:
+- The edges of the matrix are considered walls. If the ball hits a:
   - top or bottom wall, it bounces by reversing its vertical direction.
   - left or right wall, it bounces by reversing its horizontal direction.
   - corner, it bounces by reversing both directions.

curriculum/challenges/english/blocks/daily-coding-challenges-python/69162d64f96574d9bb629efc.md

@@ -13,7 +13,7 @@ Given a matrix (array of arrays) that includes the location of the ball (`2`), a
 
 - The ball always moves in a straight line.
 - The movement direction is determined by how the ball moved from `1` to `2`.
-- The edges of the matrix are considered walls. If the balls hits a:
+- The edges of the matrix are considered walls. If the ball hits a:
   - top or bottom wall, it bounces by reversing its vertical direction.
   - left or right wall, it bounces by reversing its horizontal direction.
   - corner, it bounces by reversing both directions.

curriculum/challenges/english/blocks/daily-coding-challenges-python/69162d64f96574d9bb629f02.md

@@ -57,7 +57,7 @@ TestCase().assertEqual(difference([1, 3, 5, 7, 9], [1, 2, 3, 4, 5, 6, 7, 8, 9]),
 ```py
 def difference(arr1, arr2):
 
-    return diff
+    return arr1
 ```
 
 # --solutions--