From 737380e6f0f2b62271e1735797cea62884b5ef73 Mon Sep 17 00:00:00 2001
From: Jethro Stapelbroek <ik@jethrostapelbroek.nl>
Date: Fri, 13 May 2022 21:37:46 +0200
Subject: [PATCH] R2

---
 r2.py | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 r2.py

diff --git a/r2.py b/r2.py
new file mode 100644
index 0000000..f63bc35
--- /dev/null
+++ b/r2.py
@@ -0,0 +1,7 @@
+import sys
+
+r1, s = sys.stdin.readline().split(' ')
+r1 = int(r1)
+s = int(s)
+
+print(s*2 - r1)