diff --git a/cv6/a_station.c b/cv6/a_station.c
index dc6eb1b..6339ef3 100644
--- a/cv6/a_station.c
+++ b/cv6/a_station.c
@@ -27,13 +27,16 @@ void destroy_station(struct station* station){
 }
 
 int select_track(struct station* station, const char* target){
-   unsigned long hash = 0;
+    unsigned char *str;
+    {
+        unsigned long hash = 0;
         int c;
-        unsigned char *str;
+
         while (c = *str++)
-            hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
+            hash = c + (hash << 6) + (hash << 16) - hash;
 
         return hash;
+    }
   /*  int i,len;
 for(hash = i = 0; i <'\0' ; ++i)
     {