diff --git a/arrays_beyza_saridas.py b/arrays_beyza_saridas.py
new file mode 100644
index 0000000..80a6362
--- /dev/null
+++ b/arrays_beyza_saridas.py
@@ -0,0 +1,22 @@
+import numpy as np
+
+def replace_center_with_minus_one(d, n, m):
+    if m > n:
+        raise ValueError(" m should be less than or equal to n")
+    if d <= 0:
+        raise ValueError(" d should be greater than 0")
+    if n < 0:
+        raise ValueError(" n should be greater than 0")
+    if m < 0:
+        raise ValueError(" m should be greater than 0")
+
+    an_array = np.random.randint(0, 10 ** d, size=(n, n))
+    print(an_array)
+
+    start_idx = (n - m) // 2
+    end_idx = start_idx + m
+
+    an_array[start_idx:end_idx, start_idx:end_idx] = -1
+
+    print(an_array)
+    return an_array