<prompt> Translate the following text to SwahiliAbove the first 20 billion pieces, less attractive mail begins to presort and the postal services costs at the margin undoubtedly begin to increase.  <response>: Zaidi ya vipande vya kwanza bilioni 20, barua zisizovutia huanza kuorodheshwa mapema na gharama za huduma ya posta kwenye margin bila shaka huanza kuongezeka. 