diff --git a/src/Main0.hs b/src/Main0.hs
index d885019..0269195 100644
--- a/src/Main0.hs
+++ b/src/Main0.hs
@@ -1,10 +1,13 @@
-{-# LANGUAGE DeriveDataTypeable #-}  
+{-# LANGUAGE DeriveGeneric #-}
 module Main where
 
+import GHC.Generics
+import Data.Aeson
+import Data.Aeson.Types
+
 import System.Environment
 import qualified Data.ByteString.Lazy as BS
-import System.IO  
-import Text.JSON.Generic  
+import System.IO 
 import Datatypes
 import Opt
 import JSONDeser
@@ -15,7 +18,10 @@ data JSONSer = JSONSer { problemId :: Int,
                          seed :: Int,
                          tag :: String,
                          solution :: String
-                       } deriving (Show, Data, Typeable)
+                       } deriving (Show, Generic)
+
+instance FromJSON JSONSer
+instance ToJSON JSONSer
 
 main :: IO ()
 main = do args <- getArgs
@@ -26,7 +32,7 @@ main = do args <- getArgs
           commandspoints <- return (map (\(seed,game) -> strat0 game) gmseed)
           (commands,points) <- return $ unzip commandspoints
           seeds <- return ((map (\(seed, _) -> seed)) gmseed)
-          putStrLn . encodeJSON $ (packAll id seeds commands)
+          putStrLn  $ show $ encode $ (packAll id seeds commands)
           writeFile ("scores")  (scoredata id (fst $ unzip gmseed) points)
           
 
@@ -38,7 +44,7 @@ packAll id seeds commandLists = zipWith (\x y -> JSONSer id x "lilik0" y) seeds
 scoredata :: Int -> [Int] -> [Int] -> String
 scoredata id seeds points = pretty
   where
-    pretty = foldl (\x (a,b,c) -> (show a) ++ " " ++ (show b) ++ " " ++ (show c) ++ "\n" ++ x) "" zipdata
+    pretty = foldl (\x (a,b,c) -> (show a) ++ " " ++ (show b) ++  (show c) ++ "\n" ++ x) "" zipdata
     zipdata = zip3 ids seeds points
     ids = replicate (length seeds) id
     
diff --git a/src/ReadString.hs b/src/ReadString.hs
index 70bf1fc..fa17cef 100644
--- a/src/ReadString.hs
+++ b/src/ReadString.hs
@@ -1,32 +1,34 @@
+{-# LANGUAGE DeriveGeneric #-}
 module Main where
 
+import GHC.Generics
+import Data.Aeson
+import Data.Aeson.Types
+
 import System.Environment
 import qualified Data.ByteString.Lazy as BS
-import System.IO  
-import Text.JSON.Generic  
+import System.IO 
 import Datatypes
 import Opt
 import JSONDeser
-import Strategy0
-
+import VM (Command, cmdToString)
 
 
 data JSONSer = JSONSer { problemId :: Int,
                          seed :: Int,
                          tag :: String,
                          solution :: String
-                       } deriving (Show, Data, Typeable)
+                       } deriving (Show, Generic)
+
+instance FromJSON JSONSer
+instance ToJSON JSONSer
 
 main :: IO ()
 main = do args <- getArgs
           opt <- parseArgs args
           file <- return ((optFile opt) !! 0)
           str <- BS.readFile file
-          (id, gmseed) <- return (readInput str)
-          commands <- return (map (\(seed,game) -> strat0 game) gmseed)
-          seeds <- return ((map (\(seed, _) -> seed)) gmseed)
-          putStrLn . encodeJSON $ (packAll id seeds commands)
-
+          
 packAll :: Int -> [Int] -> [[Command]] -> [JSONSer] 
 packAll id seeds commandLists = zipWith (\x y -> JSONSer id x "lilik0" y) seeds commandStrings
   where