diff --git a/AdventOfCode2020.xcodeproj/project.pbxproj b/AdventOfCode2020.xcodeproj/project.pbxproj
index 543f8c1..d265543 100644
--- a/AdventOfCode2020.xcodeproj/project.pbxproj
+++ b/AdventOfCode2020.xcodeproj/project.pbxproj
@@ -40,6 +40,9 @@
 		26E2AD56258343D800702405 /* main.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26E2AD55258343D800702405 /* main.swift */; };
 		26E2AD65258343E300702405 /* Scanner+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26E2ACE5257ED09000702405 /* Scanner+Extensions.swift */; };
 		26E2AD71258343E600702405 /* LoadData.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26E2AD3A2581713A00702405 /* LoadData.swift */; };
+		26E2AD842584A61F00702405 /* main.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26E2AD832584A61F00702405 /* main.swift */; };
+		26E2AD942584A63300702405 /* Scanner+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26E2ACE5257ED09000702405 /* Scanner+Extensions.swift */; };
+		26E2AD952584A63300702405 /* LoadData.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26E2AD3A2581713A00702405 /* LoadData.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -142,6 +145,15 @@
 			);
 			runOnlyForDeploymentPostprocessing = 1;
 		};
+		26E2AD7F2584A61F00702405 /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = /usr/share/man/man1/;
+			dstSubfolderSpec = 0;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 1;
+		};
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
@@ -169,6 +181,8 @@
 		26E2AD3A2581713A00702405 /* LoadData.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoadData.swift; sourceTree = "<group>"; };
 		26E2AD53258343D800702405 /* day11 */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = day11; sourceTree = BUILT_PRODUCTS_DIR; };
 		26E2AD55258343D800702405 /* main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = main.swift; sourceTree = "<group>"; };
+		26E2AD812584A61F00702405 /* day12 */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = day12; sourceTree = BUILT_PRODUCTS_DIR; };
+		26E2AD832584A61F00702405 /* main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = main.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -249,6 +263,13 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		26E2AD7E2584A61F00702405 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
@@ -275,6 +296,7 @@
 				26E2ACFB258009FE00702405 /* day9 */,
 				26E2AD1F25816EE100702405 /* day10 */,
 				26E2AD54258343D800702405 /* day11 */,
+				26E2AD822584A61F00702405 /* day12 */,
 				268D953A25781DD80030EC4D /* Products */,
 			);
 			sourceTree = "<group>";
@@ -293,6 +315,7 @@
 				26E2ACFA258009FE00702405 /* day9 */,
 				26E2AD1E25816EE100702405 /* day10 */,
 				26E2AD53258343D800702405 /* day11 */,
+				26E2AD812584A61F00702405 /* day12 */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -386,6 +409,14 @@
 			path = day11;
 			sourceTree = "<group>";
 		};
+		26E2AD822584A61F00702405 /* day12 */ = {
+			isa = PBXGroup;
+			children = (
+				26E2AD832584A61F00702405 /* main.swift */,
+			);
+			path = day12;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -576,6 +607,23 @@
 			productReference = 26E2AD53258343D800702405 /* day11 */;
 			productType = "com.apple.product-type.tool";
 		};
+		26E2AD802584A61F00702405 /* day12 */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 26E2AD872584A61F00702405 /* Build configuration list for PBXNativeTarget "day12" */;
+			buildPhases = (
+				26E2AD7D2584A61F00702405 /* Sources */,
+				26E2AD7E2584A61F00702405 /* Frameworks */,
+				26E2AD7F2584A61F00702405 /* CopyFiles */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = day12;
+			productName = day12;
+			productReference = 26E2AD812584A61F00702405 /* day12 */;
+			productType = "com.apple.product-type.tool";
+		};
 /* End PBXNativeTarget section */
 
 /* Begin PBXProject section */
@@ -618,6 +666,9 @@
 					26E2AD52258343D800702405 = {
 						CreatedOnToolsVersion = 12.2;
 					};
+					26E2AD802584A61F00702405 = {
+						CreatedOnToolsVersion = 12.2;
+					};
 				};
 			};
 			buildConfigurationList = 268D953425781DD80030EC4D /* Build configuration list for PBXProject "AdventOfCode2020" */;
@@ -644,6 +695,7 @@
 				26E2ACF9258009FE00702405 /* day9 */,
 				26E2AD1D25816EE100702405 /* day10 */,
 				26E2AD52258343D800702405 /* day11 */,
+				26E2AD802584A61F00702405 /* day12 */,
 			);
 		};
 /* End PBXProject section */
@@ -759,6 +811,16 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		26E2AD7D2584A61F00702405 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				26E2AD942584A63300702405 /* Scanner+Extensions.swift in Sources */,
+				26E2AD842584A61F00702405 /* main.swift in Sources */,
+				26E2AD952584A63300702405 /* LoadData.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXSourcesBuildPhase section */
 
 /* Begin XCBuildConfiguration section */
@@ -1119,6 +1181,28 @@
 			};
 			name = Release;
 		};
+		26E2AD852584A61F00702405 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 722B335UM5;
+				ENABLE_HARDENED_RUNTIME = YES;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		26E2AD862584A61F00702405 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 722B335UM5;
+				ENABLE_HARDENED_RUNTIME = YES;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
@@ -1230,6 +1314,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		26E2AD872584A61F00702405 /* Build configuration list for PBXNativeTarget "day12" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				26E2AD852584A61F00702405 /* Debug */,
+				26E2AD862584A61F00702405 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 /* End XCConfigurationList section */
 	};
 	rootObject = 268D953125781DD80030EC4D /* Project object */;
diff --git a/day12/main.swift b/day12/main.swift
new file mode 100644
index 0000000..c072897
--- /dev/null
+++ b/day12/main.swift
@@ -0,0 +1,65 @@
+import Foundation
+let input = loadData(day: 12)
+
+let scanner = Scanner(string: input)
+
+var position = (north: 0, east: 0)
+var waypoint = (north: 1, east: 10)
+var direction = 0
+
+/*
+ while !scanner.isAtEnd {
+     guard let instruction = scanner.scanCharacter(), let value = scanner.scanInt() else {
+         fatalError("Invalid input")
+     }
+
+     switch instruction {
+     case "N": position.north += value
+     case "S": position.north -= value
+     case "E": position.east += value
+     case "W": position.east -= value
+     case "L": direction = (360 + direction - value) % 360
+     case "R": direction = (direction + value) % 360
+     case "F":
+         switch direction {
+         case 0: position.east += value
+         case 90: position.north -= value
+         case 180: position.east -= value
+         case 270: position.north += value
+         default: fatalError("Invalid direction")
+         }
+     default: fatalError("Invalid command")
+     }
+ }
+ */
+
+func turn(_ degrees: Int) -> (north: Int, east: Int) {
+    switch degrees {
+    case 0: return waypoint
+    case 90: return (-waypoint.east, waypoint.north)
+    case 180: return (-waypoint.north, -waypoint.east)
+    case 270: return (waypoint.east, -waypoint.north)
+    default: fatalError("Invalid direction")
+    }
+}
+
+while !scanner.isAtEnd {
+    guard let instruction = scanner.scanCharacter(), let value = scanner.scanInt() else {
+        fatalError("Invalid input")
+    }
+
+    switch instruction {
+    case "N": waypoint.north += value
+    case "S": waypoint.north -= value
+    case "E": waypoint.east += value
+    case "W": waypoint.east -= value
+    case "R": waypoint = turn(value)
+    case "L": waypoint = turn(360 - value)
+    case "F":
+        position.north += value * waypoint.north
+        position.east += value * waypoint.east
+    default: fatalError("Invalid command")
+    }
+}
+
+print(abs(position.north) + abs(position.east))