diff --git a/l2/3.lex b/l2/3.lex
index 5a6d260..192279d 100644
--- a/l2/3.lex
+++ b/l2/3.lex
@@ -6,8 +6,18 @@
 
 %x SINGLE_LINE
 %x MULTI_LINE
+%x STRING
+%x INCLUDE
 
 %%
+<INITIAL>"#include <"   { ECHO; BEGIN(INCLUDE); }
+<INCLUDE>">"            { ECHO; BEGIN(INITIAL); }
+
+<INITIAL>\"             { ECHO; BEGIN(STRING); }
+<STRING>\\\"            { ECHO; }
+<STRING>\"              { ECHO; BEGIN(INITIAL); }
+<STRING>.               { ECHO; }
+
 <INITIAL>"///"|"//!" {
     if (leave_docs) {
         ECHO;
@@ -16,6 +26,8 @@
     }
 }
 
+<INITIAL>"/**/"         { putchar(' '); }
+
 <INITIAL>"/**"|"/*!" {
     if (leave_docs) {
         ECHO;
@@ -26,11 +38,12 @@
 
 <INITIAL>"//"           { BEGIN(SINGLE_LINE); }
 <INITIAL>.              { ECHO; }
+<SINGLE_LINE>"\\\n"     { }
 <SINGLE_LINE>\n         { BEGIN(INITIAL); }
 <SINGLE_LINE>.          { }
 
 <INITIAL>"/*"           { BEGIN(MULTI_LINE); }
-<MULTI_LINE>"*/"        { BEGIN(INITIAL); }
+<MULTI_LINE>"*/"        { putchar(' '); BEGIN(INITIAL); }
 <MULTI_LINE>.           { }
 %%