diff --git a/lab2/main.cc b/lab2/main.cc
index 32a5458b06675d72bef7ffe811cc52ac633fc77c..da1d48b997cc0bd674af3b49e42df336f86d8b9e 100644
--- a/lab2/main.cc
+++ b/lab2/main.cc
@@ -9,11 +9,12 @@ int main(void)
     Parser parser;
     double val;
 
-    while (1)
+    while (true)
     {
         try
         {
             cout << "Expression: " << flush;
+	    /* Implement the parser.Parse method */
             val = parser.Parse();
             cout << "Result:     " << val << '\n' << flush;
         }