diff -r c493eaba6018 -r 65731df141a5 marking4/postfix.scala
--- a/marking4/postfix.scala	Wed Oct 30 12:47:10 2019 +0000
+++ b/marking4/postfix.scala	Wed Oct 30 14:07:58 2019 +0000
@@ -2,7 +2,7 @@
 // by Edsger Dijkstra
 // ========================
 
-//object CW9b {
+object CW9a {
 
 type Toks = List[String]
 
@@ -98,6 +98,6 @@
 // compute(syard(split("5 * 7 / 2")))          // 17
 // compute(syard(split("9 + 24 / ( 7 - 3 )"))) // 15
 
-//}
+}