Add a implementation of Caesar cipher.

src/cipher_analytical_machine/symbol_fixtures.clj

@@ -0,0 +1,20 @@
+(ns cipher-analytical-machine.symbol_fixtures
+  (:require [clojure.string :as cs])
+  (:gen-class))
+
+(defn get-lower-ukrainian-alphabet
+  "Return the ukrainian alphabet for the symbols string"
+  []
+  "абвгґдеєжзиіїйклмнопрстуфхцчшщьюя")
+
+(defn get-ukrainian-alphabet
+  "Return the ukrainian alphabet for the symbols string"
+  []
+  (let [letters (get-lower-ukrainian-alphabet)]
+    (str letters (cs/upper-case letters))))
+
+(defn get-digits
+  "Return digits for the symbols string"
+  []
+  "0123456789")
+