diff --git a/.gitignore b/.gitignore
index 27b2e84..8aef688 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,8 @@
 .vscode/
 
 # Moodle files
-*.csv
 *.pdf
 *.svg
+
+# Generated files
+*.xml
diff --git a/l-systems.csv b/l-systems.csv
new file mode 100644
index 0000000..128353f
--- /dev/null
+++ b/l-systems.csv
@@ -0,0 +1,15 @@
+snow,APM,APPAPPA,AMAPPAMA,P,M,LINE 30,TURN 60,TURN -60
+koch,APM,APAPAPA,AMAAPAAPAPAMAMAAPAPAMAMAAMAAPA,P,M,LINE 10,TURN 90,TURN -90
+koch1,ABPM,APAPAPA,APBMAAPAPAAPABPAAMBPAAMAMAAMABMAAA,BBBBBB,P,M,LINE 10,MOVE 10,TURN 90,TURN -90
+koch2,APM,APAPAPA,AAPAPAPAPAPAMA,P,M,LINE 10,TURN 90,TURN -90
+koch3,AP,APAPAPA,AAPAPAPAPAA,P,LINE 10,TURN 90
+koch4,APM,APAPAPA,AAPAMAPAPAA,P,M,LINE 10,TURN 90,TURN -90
+koch5,APM,APAPAPA,AAPAPPAPA,P,M,LINE 10,TURN 90,TURN -90
+dragon,ABPM,A,APBP,MAMB,P,M,LINE 10,LINE 10,TURN 90,TURN -90
+sierp,ABPM,B,BPAPB,AMBMA,P,M,LINE 6,LINE 6,TURN 60,TURN -60
+gosp6,ABPM,A,APBPPBMAMMAAMBP,MAPBBPPBPAMMAMB,P,M,LINE 4,LINE 4,TURN 60,TURN -60
+gosp4,ABPM,MB,AAMBMBPAPAMBMBAPBPAABMAPBPAAPBMABMBMAPAPBBM,PAAMBMBPAPABPAMBBMAMBPABBMAMBAPAPBMBMAPAPBB,P,M,LINE 2,LINE 2,TURN 90,TURN -90
+br1,APM,A,A[PA]A[MA]A,P,M,LINE 5,TURN 25,TURN -25
+br2,APM,A,A[PA]A[MA][A],P,M,LINE 5,TURN 20,TURN -20
+br3,ABPM,A,B[PA][MA]BA,BB,P,M,LINE 5,LINE 5,TURN 25,TURN -25
+htree,ABCPM,A,B[PA]MA,CC,B,P,M,LINE 10,LINE 14,LINE 10,TURN 90,TURN -90