--- a/progs/comb2.scala	Mon Nov 11 15:26:20 2013 +0000
+++ b/progs/comb2.scala	Mon Nov 11 23:24:38 2013 +0000
@@ -67,6 +67,9 @@
 lazy val F: Parser[String, Int] = 
   ("(" ~ E ~ ")") ==> { case ((x, y), z) => y} || NumParser
 
+println(E.parse_all("1*2+3"))
+println(E.parse_all("1+2*3"))
+println(E.parse_all("1+2+3"))
 println(E.parse_all("1+2+3"))
 println(E.parse_all("1+2*3+1"))