diff --git a/Euler/multiples-of-3-and-5.rb b/Euler/multiples-of-3-and-5.rb
new file mode 100644
index 0000000..e69de29
diff --git a/letter-counter/letter_counter.rb b/letter-counter/letter_counter.rb
new file mode 100644
index 0000000..060d63c
--- /dev/null
+++ b/letter-counter/letter_counter.rb
@@ -0,0 +1,8 @@
+# Class for counting all same letters in word.
+class LetterCounter
+  def count_letters(string)
+    out = Hash.new(0)
+    string.gsub!(/[a-zA-Z]/).each { |item| out[item] += 1 }
+    out
+  end
+end
diff --git a/letter-counter/nixfile b/letter-counter/nixfile
new file mode 100644
index 0000000..e69de29
diff --git a/letter_counter.rb b/letter_counter.rb
deleted file mode 100644
index 5dd809f..0000000
--- a/letter_counter.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class LetterCounter
-  def count_letters string
-    out = {}
-    res =  string.gsub(/[a-zA-Z]/)
-    res.each do |item|
-      if out.key?(item)
-        out[item] = out[item] + 1
-      else
-        out[item] = 1
-      end
-    end
-    out
-  end
-end