diff --git a/.ruby-gemset b/.ruby-gemset
new file mode 100644
index 0000000..89fbb08
--- /dev/null
+++ b/.ruby-gemset
@@ -0,0 +1 @@
+array_lab
diff --git a/.ruby-version b/.ruby-version
index ccbccc3..c043eea 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.2.0
+2.2.1
diff --git a/lib/carmen.rb b/lib/carmen.rb
index 2fb1712..cc8fa11 100644
--- a/lib/carmen.rb
+++ b/lib/carmen.rb
@@ -1,2 +1,5 @@
 def carmen
+	# carmen.index("carmen")
+	hash = Hash[carmen.map.with_index.to_a]    # => {"a"=>0, "b"=>1, "c"=>2}
+	hash['carmen']
 end
diff --git a/lib/cube_numbers.rb b/lib/cube_numbers.rb
index 542e86c..40d166e 100644
--- a/lib/cube_numbers.rb
+++ b/lib/cube_numbers.rb
@@ -1,2 +1,3 @@
 def cube_numbers(numbers)
+	numbers.map!{ |a| a**3 }
 end
diff --git a/lib/hashtags.rb b/lib/hashtags.rb
index ca2514b..1b9afb3 100644
--- a/lib/hashtags.rb
+++ b/lib/hashtags.rb
@@ -1,2 +1,3 @@
 def hashtags(tweet)
+	tweet.each { |s| s.prepend('#') }
 end
diff --git a/lib/names.rb b/lib/names.rb
index 9b58373..c6784a0 100644
--- a/lib/names.rb
+++ b/lib/names.rb
@@ -1,2 +1,4 @@
 def name_formatter(name)
+	newname = name.delete("bartholomew")
+	newname.map(&:upcase)
 end
diff --git a/lib/only_primes.rb b/lib/only_primes.rb
index 439bb97..504cbe4 100644
--- a/lib/only_primes.rb
+++ b/lib/only_primes.rb
@@ -1,2 +1,3 @@
 def only_primes(array)
+	
 end