diff --git a/test.py b/test.py
new file mode 100644
index 0000000..f266d49
--- /dev/null
+++ b/test.py
@@ -0,0 +1,18 @@
+# Python 3
+
+def gcd(a, b):
+    if b > 0: return gcd(b, a % b)
+    else: return a
+
+print("test")
+
+N = 1000
+A = []
+for i in range(0, N):
+    A.append(i)
+
+ans = 0
+for i in A:
+    for j in A:
+        ans += gcd(i, j)
+print(ans)