diff --git a/src/packer/core.clj b/src/packer/core.clj
index 38ec814..c941f19 100644
--- a/src/packer/core.clj
+++ b/src/packer/core.clj
@@ -1,4 +1,6 @@
-(ns packer.core (:gen-class))
+(ns packer.core 
+  (:require [packer.util :as util]) 
+  (:gen-class))
 
 
 (def profile #{:t-shirt :tablet})
@@ -25,9 +27,10 @@
       (produce-items items nights i18n))))
 
 (defn produce-all [store profile nights i18n]
+  (let [nights (util/ask-int (:nights? i18n))]
   (->> store
       keys
       (map (fn [category] [category (filter #(.contains profile (:key %)) (get store category))]))
       (filter #(not (empty? (second %))))
       (map #(produce-category (first %) (second %) nights i18n))
-      (clojure.string/join "\n\n")))
\ No newline at end of file
+      (clojure.string/join "\n\n"))))
\ No newline at end of file
diff --git a/src/packer/i18n/pl.clj b/src/packer/i18n/pl.clj
index c6f157a..27ed596 100644
--- a/src/packer/i18n/pl.clj
+++ b/src/packer/i18n/pl.clj
@@ -1,6 +1,7 @@
 (ns packer.i18n.pl (:gen-class))
 
 (def dict {
+  :nights? "Na ile nocy jedziesz?"
   :electronics "Elektronika"
   :cloths "Ubrania"
   :t-shirt "T-shirt"
diff --git a/src/packer/i18n/pl.json b/src/packer/i18n/pl.json
new file mode 100644
index 0000000..0f104ba
--- /dev/null
+++ b/src/packer/i18n/pl.json
@@ -0,0 +1,7 @@
+{
+  "electronics": "Elektronika",
+  "cloths": "Ubrania",
+  "t-shirt": "T-shirt",
+  "smartphone": "Telefon komórkowy",
+  "tablet": "Tablet"
+}
\ No newline at end of file
diff --git a/src/packer/util.clj b/src/packer/util.clj
new file mode 100644
index 0000000..ef6bfc6
--- /dev/null
+++ b/src/packer/util.clj
@@ -0,0 +1,23 @@
+(ns packer.util (:gen-class))
+
+(defn ask 
+  ([question prompt] (print (str question prompt))
+              (flush)
+              (read-line))
+  ([question] (ask question " \u2192 ")))
+
+(defn try-parse-long [string]
+  (try (Long/parseLong string)
+    (catch NumberFormatException e nil)))
+
+(defn ask-int [question] 
+  (let [number (try-parse-long (ask question))] 
+    (if (nil? number)
+      (recur question)
+      number)))
+
+(defn ask-bool [question] 
+  (let [answer (clojure.string/lower-case (ask question " (y/n) \u2192 "))]
+    (if (.contains "yn" answer) 
+      (= "y" answer)
+      (recur question))))
\ No newline at end of file