diff --git a/Sources/RandomTests/main.swift b/Sources/RandomTests/main.swift
index 1b222b9..d804801 100644
--- a/Sources/RandomTests/main.swift
+++ b/Sources/RandomTests/main.swift
@@ -8,42 +8,6 @@
 import Foundation
 import TreeArray
 
-extension Sequence {
-    public func kalimbaOrdered() -> TreeArray<Element> {
-        var kalimba: TreeArray<Element> = []
-        kalimba.reserveCapacity(underestimatedCount)
-        var insertAtStart = false
-        for element in self {
-            if insertAtStart {
-                kalimba.insert(element, at: 0)
-            } else {
-                kalimba.append(element)
-            }
-            insertAtStart.toggle()
-        }
-        return kalimba
-    }
-    
-    public func kalimbaOrdered3() -> TreeArray<Element> {
-        var odds: TreeArray<Element> = []
-        var evens: TreeArray<Element> = []
-        odds.reserveCapacity(underestimatedCount)
-        evens.reserveCapacity(underestimatedCount / 2)
-        var insertAtStart = false
-        for element in self {
-            if insertAtStart {
-                odds.append(element)
-            } else {
-                evens.append(element)
-            }
-            insertAtStart.toggle()
-        }
-        odds.reverse()
-        odds.append(contentsOf: evens)
-        return odds
-    }
-}
-
-var arr = Array(0...10000000).shuffled()
-print(arr.kalimbaOrdered3())
-
+var foo: TreeArray = [1, 2, 3, 4, 5]
+foo.insert(0, at: 0)
+print(foo.hashValue)
diff --git a/Sources/TreeArray/TreeArray+CustomStringConvertible.swift b/Sources/TreeArray/TreeArray+CustomStringConvertible.swift
new file mode 100644
index 0000000..32411f0
--- /dev/null
+++ b/Sources/TreeArray/TreeArray+CustomStringConvertible.swift
@@ -0,0 +1,22 @@
+//
+//  File.swift
+//  
+//
+//  Created by Alex Dremov on 18.01.2023.
+//
+
+import Foundation
+
+extension TreeArray: CustomStringConvertible {
+    public var description: String {
+        var result = ""
+        result.reserveCapacity(size)
+        for (i, elem) in self.enumerated() {
+            result += "\(elem)"
+            if i + 1 != size {
+                result += ", "
+            }
+        }
+        return "[\(result)]"
+    }
+}
diff --git a/Sources/TreeArray/TreeArray+Equitabe.swift b/Sources/TreeArray/TreeArray+Equitabe.swift
index ae8427c..dcb055a 100755
--- a/Sources/TreeArray/TreeArray+Equitabe.swift
+++ b/Sources/TreeArray/TreeArray+Equitabe.swift
@@ -35,4 +35,8 @@ extension TreeArray: Equatable where Element: Equatable {
         }
         return true
     }
+    
+    public static func == (lhs: [Element], rhs: TreeArray) -> Bool {
+        rhs == lhs
+    }
 }
diff --git a/Sources/TreeArray/TreeArray+Hashable.swift b/Sources/TreeArray/TreeArray+Hashable.swift
new file mode 100644
index 0000000..142fe86
--- /dev/null
+++ b/Sources/TreeArray/TreeArray+Hashable.swift
@@ -0,0 +1,16 @@
+//
+//  File.swift
+//  
+//
+//  Created by Alex Dremov on 18.01.2023.
+//
+
+import Foundation
+
+extension TreeArray: Hashable where Element: Hashable {
+    public func hash(into hasher: inout Hasher) {
+        for (i, elem) in self.enumerated() {
+            hasher.combine((i + 1) ^ elem.hashValue)
+        }
+    }
+}