diff --git a/src/cipher_analytical_machine/symbol_factories.clj b/src/cipher_analytical_machine/symbol_factories.clj
index 8c92a3c..65ac2f5 100644
--- a/src/cipher_analytical_machine/symbol_factories.clj
+++ b/src/cipher_analytical_machine/symbol_factories.clj
@@ -2,7 +2,7 @@
   (:require [clojure.string :as cs])
   (:gen-class))
 
-(defn lower-english-alphabet-factory
+(defn english-alphabet-factory
   "Return the English alphabet with only lowercase letters"
   []
   (reduce
@@ -10,23 +10,11 @@
    ""
    (range (int \a) (inc (int \z)))))
 
-(defn english-alphabet-factory
-  "Return the English alphabet with lower and upper case letters"
-  []
-  (let [letters (lower-english-alphabet-factory)]
-    (str letters (cs/upper-case letters))))
-
-(defn lower-ukrainian-alphabet-factory
+(defn ukrainian-alphabet-factory
   "Return the Ukrainian alphabet with only lowercase letters"
   []
   "абвгґдеєжзиіїйклмнопрстуфхцчшщьюя")
 
-(defn ukrainian-alphabet-factory
-  "Return the Ukrainian alphabet with lower and upper case letters"
-  []
-  (let [letters (lower-ukrainian-alphabet-factory)]
-    (str letters (cs/upper-case letters))))
-
 (defn digit-set-factory
   "Return digits"
   []
@@ -48,14 +36,10 @@
   (cond
     (= language-code "en")
     (str (english-alphabet-factory)
-         (punctuation-symbol-factory)
-         (digit-set-factory)
          \ )
 
     (= language-code "uk")
     (str (ukrainian-alphabet-factory)
-         (punctuation-symbol-factory)
-         (digit-set-factory)
          \ )
 
     :else
diff --git a/test/cipher_analytical_machine/symbol_factories_test.clj b/test/cipher_analytical_machine/symbol_factories_test.clj
index b1ebc92..b00d054 100644
--- a/test/cipher_analytical_machine/symbol_factories_test.clj
+++ b/test/cipher_analytical_machine/symbol_factories_test.clj
@@ -4,38 +4,22 @@
    [cipher-analytical-machine.symbol-factories :refer :all]
   ))
 
-(deftest lower-english-alphabet-factory-test
-  (let [symbols (lower-english-alphabet-factory)]
+(deftest english-alphabet-factory-test
+  (let [symbols (english-alphabet-factory)]
     (testing "It must have the same order."
       (is (= "abcdefghijklmnopqrstuvwxyz" symbols)))
 
     (testing "It must have 26 letters."
       (is (= 26 (count symbols))))))
 
-(deftest english-alphabet-factory-test
-  (let [symbols (english-alphabet-factory)]
-    (testing "It must have the same order."
-      (is (= "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" symbols)))
-
-    (testing "It must have 2*26 letters."
-      (is (= (* 2 26) (count symbols))))))
-
-(deftest lower-ukrainian-alphabet-factory-test
-  (let [symbols (lower-ukrainian-alphabet-factory)]
+(deftest ukrainian-alphabet-factory-test
+  (let [symbols (ukrainian-alphabet-factory)]
     (testing "It must have the same order."
       (is (= "абвгґдеєжзиіїйклмнопрстуфхцчшщьюя" symbols)))
 
     (testing "It must have 33 letters."
       (is (= 33 (count symbols))))))
 
-(deftest ukrainian-alphabet-factory-test
-  (let [symbols (ukrainian-alphabet-factory)]
-    (testing "It must have the same order."
-      (is (= "абвгґдеєжзиіїйклмнопрстуфхцчшщьюяАБВГҐДЕЄЖЗИІЇЙКЛМНОПРСТУФХЦЧШЩЬЮЯ" symbols)))
-
-    (testing "It must have 2*33 letters."
-      (is (= (* 2 33) (count symbols))))))
-
 (deftest digit-set-factory-test
   (let [symbols (digit-set-factory)]
     (testing "It must have the same order."
@@ -61,15 +45,15 @@
       (is (= 3 (count symbols))))))
 
 (deftest default-symbol-factory-test
-  (testing "If language code is 'en', then it must have symbols."
+  (testing "If language code is 'en', then it must have 27 symbols."
     (let [symbols (default-symbol-factory "en")]
-      (is (= 70 (count symbols)))))
+      (is (= 27 (count symbols)))))
 
-  (testing "If language code is 'uk', then it must have symbols."
+  (testing "If language code is 'uk', then it must have 34 symbols."
     (let [symbols (default-symbol-factory "uk")]
-      (is (= 84 (count symbols)))))
+      (is (= 34 (count symbols)))))
 
   (testing "If language code is unidentified, then it must have the 'en'."
     (let [symbols (default-symbol-factory "Maybe a code")]
-      (is (= 70 (count symbols))))))
+      (is (= 27 (count symbols))))))