diff --git a/2022/aoc2022.cabal b/2022/aoc2022.cabal
index 37bfbe8..f1ce2f7 100644
--- a/2022/aoc2022.cabal
+++ b/2022/aoc2022.cabal
@@ -29,7 +29,7 @@ executable aoc2022
 
     -- LANGUAGE extensions used by modules in this package.
     -- other-extensions:
-    build-depends:    base ^>=4.16.3.0
+    build-depends:    base ^>=4.16.3.0, split ^>=0.2.3.5
     hs-source-dirs:   app
     default-language: Haskell2010
-    other-modules:    Day1.Main Day2.Main
+    other-modules:    Day1.Main Day2.Main Day3.Main
diff --git a/2022/app/Day3/Main.hs b/2022/app/Day3/Main.hs
new file mode 100644
index 0000000..3db019d
--- /dev/null
+++ b/2022/app/Day3/Main.hs
@@ -0,0 +1,61 @@
+module Day3.Main (main) where
+
+import System.IO
+import Data.Char
+import Data.List.Split
+
+main :: IO ()
+main = do
+    putStrLn "Day 3"
+    
+    handle <- openFile "app/Day3/input" ReadMode
+    contents <- hGetContents handle
+
+    let r1 = part1 contents
+    putStrLn $ "part 1: " ++ show r1
+
+    let r2 = part2 contents
+    putStrLn $ "part 2: " ++ show r2
+
+type Rucksack = (String, String)
+
+parseData :: String -> [Rucksack]
+parseData input = compartments
+    where
+        rucksacks = lines input
+        compartmentSize = map ((`div` 2) . length) rucksacks
+        firstCompartments = map (\(s, r) -> take s r) (zip compartmentSize rucksacks)
+        secondCompartments = map (\(s, r) -> drop s r) (zip compartmentSize rucksacks)
+        compartments = zip firstCompartments secondCompartments
+
+inBoth :: Eq a => [a] -> [a] -> [a]
+inBoth a b = [x | x <- a, y <- b, x == y]
+
+allEqual :: Eq a => [a] -> Bool
+allEqual []     = True
+allEqual (x:xs) = all (== x) xs
+
+inAll :: Eq a => [[a]] -> [a]
+inAll xs = map ((!! 0) . snd) res
+    where
+        prod = sequence xs
+        equal = map allEqual prod
+        res = filter fst (zip equal prod)
+
+getValue :: Char -> Int
+getValue a | a >= 'a' && a <= 'z' = ord a - ord 'a' + 1
+getValue a | a >= 'A' && a <= 'Z' = ord a - ord 'A' + 1 + 26
+
+part1 :: String -> Int
+part1 contents = sum values
+    where
+        both = map (uncurry inBoth) (parseData contents)
+        single = map (!! 0) both
+        values = map getValue single
+
+part2 :: String -> Int
+part2 contents = sum values
+    where
+        groups = chunksOf 3 (lines contents)
+        badges = map ((!! 0) . inAll) groups
+        values = map getValue badges
diff --git a/2022/app/Day3/input b/2022/app/Day3/input
new file mode 100644
index 0000000..e12b761
--- /dev/null
+++ b/2022/app/Day3/input
@@ -0,0 +1,300 @@
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+mssLLttQrsMrMzLCRmMmrrSQpvWpDNlBTBDlvNTccDQl
+HdHJwJqVPwHnqJwbjJbGjnSgSTWPpNgWWpgBBgcvDWWN
+ZHVwVZGwwdndqJVJqfHbGwnwrRLtLMftMvMMRrhmLMthhLmz
+RgHGLbTqlZlPRZPHfvvfZttJnvfvjnzr
+sVcChDVDccwNhhvjTvVzWJjnzFff
+mpNcCMTCGmLqBLGH
+wVJwHJHVMtMpBmDDWPQVPWDGDD
+zCrlZzCblBvnCDWNGLmvGDLPNG
+dqZglgbzrzbbgZqzTFSBHHFJSSSfjjSMfwhj
+NMWJSjLMCnHHNMNNHWCHMbVVGBPZTrPVPBVDrBSDGTTr
+zvttlFpgdtldwwvftPDPTWQdBZrsrWrGBZ
+hFlFmhRFvfCbmWJWHcnj
diff --git a/2022/app/Main.hs b/2022/app/Main.hs
index 6a42df3..97d529a 100644
--- a/2022/app/Main.hs
+++ b/2022/app/Main.hs
@@ -2,8 +2,10 @@ module Main where
 
 import qualified Day1.Main as Day1
 import qualified Day2.Main as Day2
+import qualified Day3.Main as Day3
 
 main :: IO ()
 main = do
     Day1.main
     Day2.main
+    Day3.main
diff --git a/2022/default.nix b/2022/default.nix
index 6802d9a..631233a 100644
--- a/2022/default.nix
+++ b/2022/default.nix
@@ -7,6 +7,7 @@ pkgs.stdenv.mkDerivation rec {
   name = "aoc-2022";
   buildInputs = [
     pkgs.haskell.compiler.${hc}
+    pkgs.haskellPackages.split
     pkgs.git
     pkgs.zlib
     pkgs.cabal-install