diff --git a/README.md b/README.md
index 14ae1f1..c7910c3 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ timestamps in solutions and blueprints
 multiple input/output sets
 undo/redo
 tooltips
+show level info in editor
 lock tile types for early levels to make it less overwhelming
 display tool variant more clearly (it's not obvious there are more states)
 make marble movement more consistent (`>o o<` depends on internal marble order)
@@ -21,16 +22,18 @@ blueprint rotation?
 ```
 - assets/
 - levels/
-  - 00_zeroes.json
-  - 01_cat.json
-  - 02_parse.json
-  - 99_sandbox.json
+  - 01_intro/
+    - 01_output.json
+    - 02_cat.json
+  - 02_lists/
+    - 02_parse.json
+  - sandbox.json
 - user/
   - solutions/
-    - 00_zeroes/
+    - output/
       - solution_0.json
       - solution_1.json
-    - 01_cat/
+    - copy_input/
       - solution_0.json
       - solution_3.json
   - blueprints
@@ -41,7 +44,7 @@ blueprint rotation?
 `00_zeroes.json`
 ```json
 {
-  "id": "00_zeroes",
+  "id": "output",
   "sortorder": 5,
   "name": "Zeroes",
   "description": "learn how to output data",
diff --git a/levels/03_text/ascii_to_lower.json b/levels/03_text/ascii_to_lower.json
new file mode 100644
index 0000000..d011995
--- /dev/null
+++ b/levels/03_text/ascii_to_lower.json
@@ -0,0 +1,11 @@
+{
+	"id": "ascii_to_lower",
+	"sort_order": 35,
+	"name": "Lowercase",
+	"description": "Convert text to lowercase",
+	"init_board": null,
+	"inputs": [73, 32, 67, 114, 97, 86, 101, 68, 32, 116, 72, 69, 32, 115, 116, 114, 69, 110, 71, 84, 72, 32, 65, 78, 68, 32, 67, 101, 114, 84, 65, 105, 110, 84, 121, 32, 111, 70, 32, 83, 84, 101, 101, 76],
+	"outputs": [105, 32, 99, 114, 97, 118, 101, 100, 32, 116, 104, 101, 32, 115, 116, 114, 101, 110, 103, 116, 104, 32, 97, 110, 100, 32, 99, 101, 114, 116, 97, 105, 110, 116, 121, 32, 111, 102, 32, 115, 116, 101, 101, 108],
+	"input_is_text": true,
+	"output_is_text": true
+}
\ No newline at end of file
diff --git a/levels/03_text/output_decimal.json b/levels/03_text/output_decimal.json
new file mode 100644
index 0000000..dfdb8f5
--- /dev/null
+++ b/levels/03_text/output_decimal.json
@@ -0,0 +1,11 @@
+{
+	"id": "output_decimal",
+	"sort_order": 31,
+	"name": "Numbers",
+	"description": "Convert input numbers to text, separated by spaces (32)\n'0' = 48, '1' = 49, '2' = 50, and so on",
+	"init_board": null,
+	"inputs": [85, 114, 32, 103, 97, 121, 58, 51],
+	"outputs": [56, 53, 32, 49, 49, 52, 32, 51, 50, 32, 49, 48, 51, 32, 57, 55, 32, 49, 50, 49, 32, 51, 50, 32, 53, 56, 32, 53, 49],
+	"input_is_text": false,
+	"output_is_text": true
+}
\ No newline at end of file
diff --git a/levels/03_text/parse_decimal.json b/levels/03_text/parse_decimal.json
new file mode 100644
index 0000000..f63eb86
--- /dev/null
+++ b/levels/03_text/parse_decimal.json
@@ -0,0 +1,11 @@
+{
+	"id": "parse_decimal",
+	"sort_order": 33,
+	"name": "Numbers 2",
+	"description": "Convert input numbers from text, separated by spaces (32)\n'0' = 48, '1' = 49, '2' = 50, and so on",
+	"init_board": null,
+	"inputs": [56, 53, 32, 49, 49, 52, 32, 51, 50, 32, 49, 48, 51, 32, 57, 55, 32, 49, 50, 49, 32, 51, 50, 32, 53, 56, 32, 53, 49],
+	"outputs": [85, 114, 32, 103, 97, 121, 58, 51],
+	"input_is_text": true,
+	"output_is_text": false
+}
\ No newline at end of file