diff --git a/data_structures/arrays/2d_array_ds.py b/data_structures/arrays/2d_array_ds.py
new file mode 100644
index 0000000..4e58982
--- /dev/null
+++ b/data_structures/arrays/2d_array_ds.py
@@ -0,0 +1,37 @@
+#!/bin/python3
+
+import math
+import os
+import random
+import re
+import sys
+
+# Complete the hourglassSum function below.
+def hourglassSum(arr):
+    lis=[-999]*16
+    c=0
+    for i in range(0,4):
+        for j in range(0,4):
+            lis[c]= sum(arr[i][j:j+3]) + sum(arr[i+2][j:j+3])
+            c+=1
+    c=0
+    for i in range(1,5):
+        for j in range(1,5):
+            lis[c]+=arr[i][j]
+            c+=1
+    return max(lis)
+    
+
+if __name__ == '__main__':
+    fptr = open(os.environ['OUTPUT_PATH'], 'w')
+
+    arr = []
+
+    for _ in range(6):
+        arr.append(list(map(int, input().rstrip().split())))
+
+    result = hourglassSum(arr)
+
+    fptr.write(str(result) + '\n')
+
+    fptr.close()
diff --git a/data_structures/arrays/Array_ds.py b/data_structures/arrays/Array_ds.py
new file mode 100644
index 0000000..b601ce9
--- /dev/null
+++ b/data_structures/arrays/Array_ds.py
@@ -0,0 +1,27 @@
+
+#!/bin/python3
+
+import math
+import os
+import random
+import re
+import sys
+
+# Complete the reverseArray function below.
+def reverseArray(a):
+    a.reverse()
+    return a
+
+if __name__ == '__main__':
+    fptr = open(os.environ['OUTPUT_PATH'], 'w')
+
+    arr_count = int(input())
+
+    arr = list(map(int, input().rstrip().split()))
+
+    res = reverseArray(arr)
+
+    fptr.write(' '.join(map(str, res)))
+    fptr.write('\n')
+
+    fptr.close()