diff --git a/1/input b/01/input
similarity index 100%
rename from 1/input
rename to 01/input
diff --git a/1/script.rb b/01/script.rb
similarity index 100%
rename from 1/script.rb
rename to 01/script.rb
diff --git a/2/input b/02/input
similarity index 100%
rename from 2/input
rename to 02/input
diff --git a/2/script.rb b/02/script.rb
similarity index 100%
rename from 2/script.rb
rename to 02/script.rb
diff --git a/3/input b/03/input
similarity index 100%
rename from 3/input
rename to 03/input
diff --git a/3/script.rb b/03/script.rb
similarity index 100%
rename from 3/script.rb
rename to 03/script.rb
diff --git a/4/script.rb b/04/script.rb
similarity index 100%
rename from 4/script.rb
rename to 04/script.rb