diff --git a/e001.erl b/erlang/e001.erl
similarity index 100%
rename from e001.erl
rename to erlang/e001.erl
diff --git a/e002.erl b/erlang/e002.erl
similarity index 100%
rename from e002.erl
rename to erlang/e002.erl
diff --git a/e003.erl b/erlang/e003.erl
similarity index 100%
rename from e003.erl
rename to erlang/e003.erl
diff --git a/e004.erl b/erlang/e004.erl
similarity index 100%
rename from e004.erl
rename to erlang/e004.erl
diff --git a/e005.erl b/erlang/e005.erl
similarity index 100%
rename from e005.erl
rename to erlang/e005.erl