From 5213439988951b21a120a7887d4b8f5f64376b6f Mon Sep 17 00:00:00 2001
From: alexey <aLLeksey@users.noreply.github.com>
Date: Fri, 4 Dec 2020 07:56:51 +0300
Subject: [PATCH 1/2] Edit 2.2.3.md Add  brackets to minus sign

---
 ch02/2.3/2.3.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ch02/2.3/2.3.md b/ch02/2.3/2.3.md
index 51bb5cf5..d8467917 100644
--- a/ch02/2.3/2.3.md
+++ b/ch02/2.3/2.3.md
@@ -56,7 +56,7 @@ translation schemes:
 
 ```
 expr -> expr {print("+")} expr +
-      | expr {print("-")} expr -
+      | expr {print("-(")} expr {print(")"} -
       | {print("(")} expr {print(")*(")} expr {print(")")} *
       | {print("(")} expr {print(")/(")} expr {print(")")} /
       | digit {print(digit)}

From 245d009ea615e880500a45935a84b6f4c705f43a Mon Sep 17 00:00:00 2001
From: alexey <aLLeksey@users.noreply.github.com>
Date: Sun, 10 Jan 2021 02:09:18 +0300
Subject: [PATCH 2/2] add my roman numerals

---
 ch02/2.2/rom | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 ch02/2.2/rom

diff --git a/ch02/2.2/rom b/ch02/2.2/rom
new file mode 100644
index 00000000..f0f90bff
--- /dev/null
+++ b/ch02/2.2/rom
@@ -0,0 +1,37 @@
+head->X
+sub->sub|head
+low->head|headhead|headheadhead
+subed->L|C
+mid->C
+lh->low
+hh->midlow
+tens->lh|hh|headsubed|e
+
+head->I
+sub->sub|head
+low->head|headhead|headheadhead
+subed->V|X
+mid->V
+lh->low
+hh->midlow
+ones->lh|hh|headsubed|e
+
+head->C
+sub->sub|head
+low->head|headhead|headheadhead
+subed->M|D
+mid->D
+lh->low
+hh->midlow
+hundrs->lh|hh|headsubed|e
+
+head->M
+low->head|headhead|headheadhead
+thouth->low|e
+
+rim->thouth_hundrs_ones
+
+
+
+
+