diff --git a/lab3/app/Main.hs b/lab3/app/Main.hs
index 38f4296..55a622c 100644
--- a/lab3/app/Main.hs
+++ b/lab3/app/Main.hs
@@ -22,6 +22,7 @@ main = do
     
     let sourceTextPath = "resources/biography.txt"
     let sourceImagePath = "resources/david.bmp"
+    let alphabetPath = "tmp/alphabet.txt"
     let encryptedTextPath = "tmp/biography_encrypted.txt"
     let encodedImagePath = "tmp/david_" ++ show bitsPerByte ++ "_" ++ show caesarShift ++ ".bmp"
     let decodedTextPath = "tmp/biography.txt"
@@ -33,6 +34,8 @@ main = do
     putStrLn "\nШифрование текста"    
     let alphabet = createAlphabetFromText inputText
     putStrLn $ "Размер алфавита: " ++ show (length alphabet)
+    writeFile alphabetPath alphabet
+    putStrLn $ "Алфавит сохранён в файл \"" ++ alphabetPath ++ "\""
     let encryptedText = encryptCaesar alphabet caesarShift inputText
     putStrLn $ "10 символов шифра: \"" ++ take 10 encryptedText ++ "\""
     writeFile encryptedTextPath encryptedText