diff --git a/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/.loops.py.swp b/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/.loops.py.swp
index a88d85b..dd9a42c 100644
Binary files a/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/.loops.py.swp and b/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/.loops.py.swp differ
diff --git a/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/loops.py b/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/loops.py
index c4f5f72..00d372e 100644
--- a/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/loops.py
+++ b/archives/01-introduction-to-computer-science-and-programming/archives/UNIT-01/03-problem-solving/loops.py
@@ -20,4 +20,17 @@ for i in range(0, len(items), 1):
   if items[i] % 2 == 0:
     count += 1
 
+# The accumulate pattern
+total = 0
+for i in range(0, len(items), 1):
+  total += items[i]
+
+# The filtered-accumulate pattern
+def sumEvens(items):
+  total = 0
+  for i in range(0, len(items), 1):
+    if items[i] % 2 == 0:
+      total += items[i]
+  return total
+