working through part 1

5/input.txt

+    [W]         [J]     [J]        
+    [V]     [F] [F] [S] [S]        
+    [S] [M] [R] [W] [M] [C]        
+    [M] [G] [W] [S] [F] [G]     [C]
+[W] [P] [S] [M] [H] [N] [F]     [L]
+[R] [H] [T] [D] [L] [D] [D] [B] [W]
+[T] [C] [L] [H] [Q] [J] [B] [T] [N]
+[G] [G] [C] [J] [P] [P] [Z] [R] [H]
+ 1   2   3   4   5   6   7   8   9 
+
+move 3 from 4 to 3
+move 3 from 8 to 6
+move 2 from 3 to 8
+move 3 from 7 to 2
+move 1 from 1 to 3
+move 6 from 2 to 7
+move 5 from 3 to 6
+move 1 from 8 to 6
+move 4 from 4 to 3
+move 2 from 1 to 2
+move 10 from 7 to 3
+move 1 from 7 to 2
+move 6 from 5 to 8
+move 1 from 1 to 4
+move 7 from 6 to 3
+move 22 from 3 to 4
+move 3 from 2 to 8
+move 4 from 6 to 8
+move 5 from 2 to 1
+move 3 from 9 to 4
+move 2 from 4 to 3
+move 1 from 9 to 2
+move 1 from 5 to 3
+move 1 from 2 to 6
+move 1 from 5 to 2
+move 1 from 2 to 7
+move 4 from 4 to 5
+move 2 from 1 to 9
+move 1 from 1 to 3
+move 2 from 5 to 9
+move 5 from 9 to 8
+move 1 from 5 to 9
+move 1 from 7 to 2
+move 1 from 9 to 4
+move 5 from 6 to 7
+move 1 from 5 to 2
+move 2 from 2 to 4
+move 2 from 7 to 4
+move 2 from 7 to 8
+move 21 from 8 to 6
+move 6 from 3 to 1
+move 1 from 7 to 9
+move 1 from 1 to 7
+move 7 from 6 to 8
+move 3 from 1 to 9
+move 24 from 4 to 8
+move 3 from 1 to 3
+move 10 from 6 to 8
+move 1 from 4 to 5
+move 1 from 3 to 9
+move 5 from 9 to 8
+move 11 from 8 to 3
+move 1 from 5 to 7
+move 1 from 1 to 8
+move 1 from 6 to 1
+move 19 from 8 to 1
+move 1 from 7 to 9
+move 10 from 3 to 1
+move 3 from 3 to 8
+move 1 from 7 to 3
+move 1 from 9 to 2
+move 23 from 1 to 7
+move 1 from 1 to 9
+move 1 from 3 to 6
+move 2 from 6 to 9
+move 7 from 8 to 1
+move 8 from 8 to 1
+move 11 from 7 to 2
+move 2 from 6 to 8
+move 1 from 6 to 8
+move 7 from 8 to 6
+move 1 from 9 to 4
+move 1 from 8 to 1
+move 10 from 7 to 1
+move 6 from 2 to 5
+move 5 from 2 to 9
+move 4 from 5 to 8
+move 1 from 5 to 8
+move 13 from 1 to 6
+move 1 from 2 to 4
+move 1 from 4 to 5
+move 2 from 9 to 4
+move 3 from 9 to 4
+move 2 from 5 to 3
+move 1 from 3 to 9
+move 2 from 8 to 5
+move 2 from 5 to 7
+move 2 from 8 to 6
+move 2 from 7 to 3
+move 2 from 7 to 8
+move 4 from 1 to 3
+move 3 from 8 to 4
+move 8 from 4 to 9
+move 1 from 9 to 8
+move 3 from 3 to 6
+move 4 from 3 to 9
+move 1 from 8 to 2
+move 12 from 1 to 5
+move 9 from 6 to 8
+move 1 from 4 to 8
+move 3 from 1 to 3
+move 12 from 5 to 8
+move 1 from 2 to 6
+move 1 from 3 to 1
+move 1 from 3 to 2
+move 1 from 1 to 2
+move 16 from 6 to 1
+move 1 from 6 to 3
+move 2 from 3 to 8
+move 7 from 8 to 5
+move 1 from 2 to 6
+move 1 from 2 to 1
+move 2 from 9 to 4
+move 1 from 6 to 7
+move 8 from 9 to 8
+move 5 from 5 to 6
+move 9 from 8 to 7
+move 12 from 1 to 3
+move 2 from 6 to 3
+move 6 from 8 to 9
+move 5 from 1 to 4
+move 2 from 5 to 7
+move 11 from 7 to 3
+move 1 from 7 to 4
+move 2 from 6 to 8
+move 7 from 4 to 6
+move 3 from 8 to 7
+move 3 from 8 to 2
+move 19 from 3 to 2
+move 4 from 8 to 7
+move 2 from 9 to 8
+move 1 from 4 to 5
+move 1 from 6 to 8
+move 1 from 5 to 7
+move 8 from 9 to 4
+move 1 from 8 to 5
+move 1 from 5 to 6
+move 4 from 2 to 7
+move 8 from 6 to 9
+move 6 from 7 to 3
+move 4 from 3 to 8
+move 5 from 8 to 7
+move 15 from 2 to 8
+move 8 from 3 to 4
+move 7 from 9 to 7
+move 3 from 2 to 4
+move 2 from 7 to 4
+move 2 from 4 to 3
+move 1 from 9 to 4
+move 9 from 7 to 5
+move 4 from 5 to 9
+move 2 from 5 to 3
+move 2 from 9 to 1
+move 3 from 5 to 2
+move 4 from 3 to 1
+move 7 from 7 to 4
+move 3 from 2 to 6
+move 4 from 4 to 5
+move 2 from 1 to 6
+move 8 from 4 to 1
+move 1 from 8 to 2
+move 1 from 2 to 8
+move 11 from 8 to 7
+move 3 from 5 to 9
+move 1 from 5 to 9
+move 11 from 7 to 1
+move 7 from 8 to 9
+move 11 from 1 to 3
+move 6 from 4 to 5
+move 8 from 1 to 7
+move 4 from 6 to 5
+move 3 from 5 to 8
+move 8 from 7 to 3
+move 7 from 4 to 7
+move 7 from 5 to 6
+move 3 from 3 to 8
+move 2 from 4 to 9
+move 16 from 3 to 1
+move 7 from 7 to 1
+move 2 from 8 to 7
+move 2 from 8 to 1
+move 1 from 8 to 4
+move 1 from 7 to 4
+move 2 from 4 to 2
+move 1 from 8 to 7
+move 1 from 2 to 3
+move 1 from 2 to 4
+move 1 from 7 to 8
+move 8 from 6 to 7
+move 1 from 3 to 5
+move 15 from 1 to 2
+move 4 from 9 to 1
+move 1 from 8 to 1
+move 11 from 9 to 2
+move 21 from 2 to 6
+move 1 from 4 to 2
+move 4 from 2 to 7
+move 1 from 5 to 9
+move 1 from 9 to 4
+move 19 from 1 to 2
+move 5 from 2 to 4
+move 8 from 7 to 6
+move 10 from 6 to 2
+move 5 from 7 to 5
+move 2 from 4 to 1
+move 3 from 6 to 9
+move 3 from 9 to 2
+move 1 from 5 to 2
+move 13 from 6 to 3
+move 2 from 6 to 9
+move 17 from 2 to 3
+move 1 from 6 to 2
+move 2 from 2 to 1
+move 2 from 1 to 5
+move 5 from 5 to 3
+move 2 from 2 to 8
+move 10 from 2 to 1
+move 18 from 3 to 8
+move 13 from 8 to 1
+move 7 from 8 to 2
+move 2 from 2 to 1
+move 4 from 3 to 8
+move 1 from 2 to 7
+move 1 from 2 to 8
+move 2 from 4 to 1
+move 1 from 5 to 4
+move 1 from 9 to 6
+move 1 from 1 to 7
+move 11 from 3 to 4
+move 1 from 6 to 2
+move 7 from 1 to 2
+move 5 from 8 to 5
+move 1 from 7 to 5
+move 3 from 5 to 1
+move 7 from 1 to 6
+move 6 from 1 to 6
+move 6 from 1 to 8
+move 2 from 1 to 3
+move 5 from 2 to 5
+move 1 from 7 to 6
+move 1 from 4 to 2
+move 4 from 2 to 4
+move 1 from 1 to 9
+move 1 from 3 to 8
+move 7 from 8 to 5
+move 1 from 9 to 7
+move 1 from 9 to 4
+move 8 from 5 to 7
+move 5 from 4 to 1
+move 4 from 1 to 6
+move 3 from 1 to 6
+move 3 from 3 to 6
+move 1 from 5 to 6
+move 3 from 7 to 5
+move 15 from 6 to 7
+move 12 from 7 to 4
+move 8 from 5 to 2
+move 3 from 4 to 9
+move 3 from 9 to 7
+move 1 from 6 to 2
+move 9 from 4 to 9
+move 4 from 9 to 1
+move 2 from 1 to 7
+move 3 from 6 to 4
+move 3 from 6 to 4
+move 2 from 1 to 2
+move 1 from 5 to 6
+move 2 from 9 to 4
+move 13 from 4 to 2
+move 22 from 2 to 3
+move 3 from 7 to 8
+move 1 from 9 to 6
+move 1 from 9 to 3
+move 2 from 8 to 9
+move 3 from 9 to 8
+move 5 from 6 to 4
+move 2 from 8 to 6
+move 4 from 7 to 8
+move 2 from 2 to 5
+move 4 from 8 to 7
+move 2 from 5 to 7
+move 7 from 7 to 2
+move 9 from 4 to 7
+move 4 from 2 to 1
+move 3 from 7 to 6
+move 12 from 3 to 5
+move 5 from 2 to 5
+move 1 from 8 to 2
+move 1 from 3 to 5
+move 4 from 3 to 1
+move 2 from 6 to 1
+move 11 from 5 to 3
+move 3 from 6 to 1
+move 8 from 1 to 9
+move 5 from 9 to 8
+move 2 from 9 to 7
+move 1 from 1 to 8
+move 4 from 7 to 6
+move 6 from 3 to 1
+move 1 from 9 to 7
+move 5 from 7 to 4
+move 3 from 8 to 3
+move 1 from 6 to 5
+move 2 from 2 to 1
+move 4 from 7 to 9
+move 3 from 8 to 6
+move 6 from 3 to 8
+move 6 from 8 to 7
+move 4 from 6 to 5
+move 6 from 5 to 8
+move 2 from 9 to 5
+move 2 from 9 to 8
+move 4 from 7 to 4
+move 1 from 6 to 3
+move 5 from 8 to 4
+move 1 from 6 to 9
+move 1 from 7 to 3
+move 7 from 3 to 8
+move 6 from 1 to 4
+move 6 from 1 to 2
+move 17 from 4 to 6
+move 4 from 8 to 5
+move 3 from 3 to 1
+move 5 from 4 to 1
+move 5 from 2 to 7
+move 7 from 8 to 1
+move 7 from 7 to 2
+move 4 from 6 to 3
+move 6 from 1 to 8
+move 2 from 4 to 9
+move 2 from 5 to 4
+move 1 from 4 to 3
+move 1 from 4 to 7
+move 2 from 7 to 5
+move 4 from 5 to 3
+move 1 from 9 to 1
+move 5 from 5 to 3
+move 1 from 8 to 5
+move 7 from 6 to 1
+move 6 from 6 to 8
+move 11 from 3 to 7
+move 2 from 9 to 1
+move 8 from 8 to 2
+move 5 from 7 to 5
+move 5 from 7 to 4
+move 1 from 2 to 6
+move 2 from 4 to 6
+move 1 from 7 to 5
+move 2 from 6 to 4
+move 10 from 2 to 6
+move 3 from 4 to 5
+move 1 from 6 to 4
+move 4 from 6 to 4
+move 6 from 6 to 9
+move 3 from 3 to 8
+move 19 from 1 to 8
+move 23 from 8 to 9
+move 1 from 8 to 1
+move 1 from 1 to 7
+move 1 from 7 to 1
+move 1 from 1 to 6
+move 5 from 9 to 5
+move 1 from 8 to 5
+move 5 from 4 to 5
+move 4 from 5 to 4
+move 1 from 9 to 1
+move 6 from 9 to 3
+move 2 from 2 to 8
+move 1 from 1 to 3
+move 1 from 6 to 7
+move 1 from 7 to 3
+move 1 from 2 to 5
+move 6 from 9 to 8
+move 5 from 4 to 5
+move 10 from 5 to 2
+move 10 from 5 to 2
+move 11 from 9 to 1
+move 4 from 2 to 6
+move 18 from 2 to 9
+move 2 from 6 to 9
+move 3 from 3 to 9
+move 1 from 4 to 3
+move 1 from 6 to 8
+move 6 from 8 to 4
+move 6 from 5 to 7
+move 19 from 9 to 4
+move 7 from 1 to 3
+move 1 from 6 to 8
+move 4 from 8 to 7
+move 2 from 3 to 6
+move 3 from 1 to 8
+move 1 from 1 to 5
+move 7 from 7 to 3
+move 8 from 3 to 1
+move 1 from 5 to 7
+move 2 from 6 to 2
+move 3 from 1 to 8
+move 1 from 2 to 6
+move 3 from 1 to 7
+move 4 from 8 to 9
+move 4 from 7 to 6
+move 3 from 9 to 7
+move 3 from 9 to 3
+move 6 from 7 to 3
+move 13 from 3 to 1
+move 5 from 3 to 4
+move 1 from 8 to 7
+move 1 from 7 to 9
+move 1 from 8 to 5
+move 1 from 9 to 4
+move 1 from 5 to 2
+move 2 from 9 to 2
+move 3 from 6 to 2
+move 1 from 3 to 7
+move 13 from 4 to 8
+move 14 from 1 to 5
+move 6 from 2 to 7
+move 4 from 8 to 7
+move 1 from 1 to 3
+move 1 from 2 to 6
+move 5 from 4 to 2
+move 4 from 8 to 4
+move 12 from 5 to 4
+move 1 from 3 to 8
+move 9 from 4 to 2
+move 9 from 4 to 5
+move 1 from 4 to 5
+move 6 from 4 to 3
+move 5 from 8 to 4
+move 9 from 4 to 7
+move 4 from 2 to 3
+move 8 from 7 to 1
+move 2 from 7 to 1
+move 2 from 2 to 9
+move 1 from 6 to 7
+move 2 from 6 to 3
+move 1 from 2 to 3
+move 2 from 7 to 3
+move 3 from 3 to 7
+move 8 from 1 to 2
+move 9 from 5 to 3
+move 15 from 2 to 7
+move 20 from 7 to 5
+move 23 from 5 to 6
+move 20 from 6 to 8
+move 1 from 6 to 4
+move 2 from 9 to 7
+move 1 from 4 to 6
+move 3 from 7 to 6
+move 2 from 7 to 5
+move 13 from 3 to 5
+move 3 from 7 to 1
+move 13 from 5 to 4
+move 3 from 1 to 4
+move 5 from 6 to 1
+move 6 from 4 to 3
+move 1 from 7 to 4
+move 11 from 8 to 6
+move 1 from 8 to 6
+move 2 from 1 to 5
+move 2 from 5 to 3
+move 11 from 6 to 5
+move 3 from 8 to 3
+move 4 from 3 to 5
+move 15 from 5 to 1
+move 1 from 3 to 5
+move 3 from 8 to 5
+move 1 from 5 to 9
+move 1 from 5 to 3
+move 9 from 4 to 6
+move 7 from 6 to 8
+move 2 from 4 to 6
+move 2 from 5 to 1
+move 8 from 8 to 7
+move 6 from 6 to 2
+move 1 from 5 to 2
+move 4 from 3 to 4
+move 6 from 1 to 5
+move 7 from 3 to 4
+move 2 from 3 to 2
+move 2 from 8 to 9
+move 9 from 2 to 5
+move 9 from 5 to 4
+move 2 from 3 to 6
+move 14 from 1 to 7
+move 15 from 7 to 2
+move 1 from 1 to 7
+move 7 from 5 to 1
+move 2 from 9 to 2
+move 2 from 1 to 7
+move 1 from 1 to 4
+move 2 from 6 to 8
+move 7 from 2 to 8
+move 1 from 9 to 6
+move 7 from 8 to 3
+move 1 from 6 to 4
+move 1 from 8 to 2
+move 6 from 4 to 6
+move 9 from 2 to 1
+move 1 from 3 to 9
+move 3 from 7 to 5

5/sample.txt

+    [D]    
+[N] [C]    
+[Z] [M] [P]
+ 1   2   3 
+
+move 1 from 2 to 1
+move 3 from 1 to 3
+move 2 from 2 to 1
+move 1 from 1 to 2

5/solve.hs

+import Data.Char
+import Data.List
+
+
+type Action = (Int, Int, Int)
+
+-- input depth: 8
+-- sample depth: 3
+parseStack :: Int -> IO [(Int, String)]
+parseStack depth = (zip [1 .. ] <$> map (filter (/= ' ')))
+    . filter (any isUpper) . (transpose <$> take depth) . lines
+    <$> readFile "./input.txt"
+
+numbers :: String -> [Int]
+numbers [] = []
+numbers (l:ls) = if ord l >= 48 && ord l <= 57
+    then (ord l - 48) : numbers ls
+    else numbers ls
+
+tuplify3 :: [a] -> (a, a, a)
+tuplify3 (x1:x2:x3:_) = (x1, x2, x3)
+
+dropFirst :: Int -> [String] -> [String]
+dropFirst 0 xs = xs
+dropFirst n (_:xs) = dropFirst (n-1) xs
+
+-- input depth: 10
+-- input depth: 5
+parseMoves :: Int -> IO [(Int, Int, Int)]
+parseMoves depth = readFile "./input.txt"
+    >>= (return . map (tuplify3 . numbers)) . (dropFirst depth <$> lines)
+
+
+----------------------------------------------------------------------------------------------------
+
+move :: (Int, Int, Int) -> String
+move = undefined
+
+main :: IO ()
+main = undefined