added start sym
added start sym

jamesjia94/BIDMach,BIDData/BIDMach,jamesjia94/BIDMach,BIDData/BIDMach,BIDData/BIDMach,jamesjia94/BIDMach,jamesjia94/BIDMach,jamesjia94/BIDMach,jamesjia94/BIDMach,BIDData/BIDMach,BIDData/BIDMach,BIDData/BIDMach