diff --git a/app/Main.hs b/app/Main.hs
index 229a919..1f78771 100644
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -30,4 +30,4 @@ import qualified Day24
 import qualified Day25
 
 main :: IO ()
-main = Day01.main
+main = Day02.main
diff --git a/input/02.txt b/input/02.txt
new file mode 100644
index 0000000..32b0592
--- /dev/null
+++ b/input/02.txt
@@ -0,0 +1,250 @@
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diff --git a/src/Day02.hs b/src/Day02.hs
index 493d4d3..62cd322 100644
--- a/src/Day02.hs
+++ b/src/Day02.hs
@@ -1,6 +1,16 @@
 module Day02 (main) where
 
+import Data.List (group, sort, (\\), intersect)
+
+part1 :: [String] -> Int
+part1 strs = (length . filter (count 2) $ strs) * (length . filter (count 3) $ strs)
+    where count n = any (== n) . map length . group . sort
+
+part2 :: [String] -> String
+part2 strs = head [ls `intersect` rs | ls <- strs, rs <- strs, length (ls \\ rs) == 1]
+
 main :: IO ()
 main = do
-    input <- readFile "input/02.txt"
-    print input
\ No newline at end of file
+    input <- lines <$> readFile "input/02.txt"
+    print    $ part1 input
+    putStrLn $ part2 input
\ No newline at end of file