diff --git a/Week02/sequences_zehra_karatas.py b/Week02/sequences_zehra_karatas.py
new file mode 100644
index 00000000..8daacfe6
--- /dev/null
+++ b/Week02/sequences_zehra_karatas.py
@@ -0,0 +1,44 @@
+my_list = [1, 2, 3, 3, 1, 1, 4]
+my_tuple = (2, 4, 4, 7, 9) 
+my_set = {3, 10, 12, 15, 19} 
+my_dict = {
+  "first_exam" : 67,
+  "second_exam" : 89,
+  "third_exam" : 58
+}
+
+
+def remove_duplicates(my_list):
+  update_list = list(set(my_list))
+  return update_list
+
+
+def list_counts(my_list):
+  counts = {} #empty dict
+  for item in my_list:
+    if item in counts:
+      counts[item] += 1
+    else:
+      counts[item] = 1
+  return counts
+
+
+def reverse_dict(my_dict):
+  reverse_dict = {}
+  for key, value in my_dict.items():
+    reverse_dict[value] = key
+  return reverse_dict
+  
+  
+result_duplicates = remove_duplicates(my_list)  
+result_counts= list_counts(my_list)
+result_reverse = reverse_dict(my_dict)
+
+print(result_duplicates)
+print(result_counts)
+print(result_reverse)
+
+
+
+      
+