diff --git a/Package.swift b/Package.swift
index c931fb5..1ac491e 100644
--- a/Package.swift
+++ b/Package.swift
@@ -19,7 +19,8 @@ let package = Package(
             .executable(name: "07", targets: ["07"]),
             .executable(name: "08", targets: ["08"]),
             .executable(name: "09", targets: ["09"]),
-            .executable(name: "10", targets: ["10"])
+            .executable(name: "10", targets: ["10"]),
+            .executable(name: "11", targets: ["11"])
         ],
     dependencies: [
         // Dependencies declare other packages that this package depends on.
@@ -88,6 +89,13 @@ let package = Package(
                 .targetItem(name: "Runner", condition: nil),
                 .product(name: "Collections", package: "swift-collections"),
             ]
+        ),
+        .executableTarget(
+            name: "11",
+            dependencies: [
+                .targetItem(name: "Runner", condition: nil),
+                //.product(name: "Collections", package: "swift-collections"),
+            ]
         )
     ]
 )
diff --git a/Sources/Runner/Resources/input/11.txt b/Sources/Runner/Resources/input/11.txt
new file mode 100644
index 0000000..add3348
--- /dev/null
+++ b/Sources/Runner/Resources/input/11.txt
@@ -0,0 +1,10 @@
+5251578181
+6158452313
+1818578571
+3844615143
+6857251244
+2375817613
+8883514435
+2321265735
+2857275182
+4821156644
diff --git a/Sources/Runner/Resources/input/11_test.txt b/Sources/Runner/Resources/input/11_test.txt
new file mode 100644
index 0000000..03743f6
--- /dev/null
+++ b/Sources/Runner/Resources/input/11_test.txt
@@ -0,0 +1,10 @@
+5483143223
+2745854711
+5264556173
+6141336146
+6357385478
+4167524645
+2176841721
+6882881134
+4846848554
+5283751526