-import CPUTime (getCPUTime)
-import PrelST
-import PrelRead
-import PrelShow
-import PrelNum -- So we get fromInt, toInt
-import PrelIOBase
-import PrelNumExtra ( float2Double, double2Float )
-import PrelBase
-import PrelArr
-import Time (getClockTime, ClockTime(..))
+import PrelGHC ( RealWorld )
+import PrelNum ( fromInt )
+import PrelShow ( showSignedInt, showSpace )
+import PrelRead ( readDec )
+import PrelIOBase ( unsafePerformIO, stToIO )
+import PrelArr ( MutableVar, newVar, readVar, writeVar )
+import PrelReal ( toInt )
+import CPUTime ( getCPUTime )
+import PrelFloat ( float2Double, double2Float )
+import Time ( getClockTime, ClockTime(..) )