diff --git a/parking2.py b/parking2.py
new file mode 100644
index 0000000..a0ac725
--- /dev/null
+++ b/parking2.py
@@ -0,0 +1,5 @@
+t = int(input())
+for _ in range(t):
+    n = int(input())
+    x = list(map(int, input().split()))
+    print((max(x) - min(x)) * 2)