April 8th Wednesday (四月 八日 水曜日)

 
  A new design solution is brought forth.  Now, another new work thread is split out from the original program.  The main task of this
new thread is to send demand messages through public lines.  This also is a complex thing to do due to the sophisticated logic of the
program dattrcol.

  There are too many moditification based on the original source.