 
   override func setUp() {
     super.setUp()
-    var rng = LCRNG(seed: seed)
+    var rng = SplitMix64(seed: 42)
     inputIndices = Array(inputString.indices.shuffled(using: &rng).prefix(count))
   }
 


  override func setUp() {
    super.setUp()
    var generator = LCRNG(seed: seed)
    let range = 0 ..< inputString.utf16.count
    inputOffsets = Array(range.shuffled(using: &generator).prefix(count))
  }


  override func setUp() {
    super.setUp()
    var rng = SplitMix64(seed: 42)
    let range = 0 ..< inputString.utf16.count
    inputOffsets = Array(range.shuffled(using: &rng).prefix(count))
  }
