calc = 0
while true do

  id,mess = rednet.receive()

  if (id ==43) and (mess == "demande")then

    rep = turtle.suck()
    obj = turtle.getItemDetail(1)
    while (rep == true) do
        print(obj.name)
        cpt = turtle.getItemCount(1)
        print(cpt)
        if(obj.name == "minecraft:iron_ingot" ) then
           calc = calc + (cpt * 1)
           print(calc.."credit")
           turtle.dropDown()
        end
        rep = turtle.suck()
    end
    print("il y a au final "..calc)
  end



  sleep(1)
end