Coal Counter

rednet.open("right")
local total_counted =0
local clear_screen = " \n \n \n "
local clear_line = "\n"
while true do
    print("Checking Fuel...")
    while turtle.getFuelLevel() < 10000 do
            turtle.suck()
            turtle.refuel() end

    print(clear_line)
    print("Transfering coal...")
    for i=1,16,1 do
        turtle.select(i)
        turtle.suck() end
    sleep(1)
    print(clear_line)
    sleep(0.5)
    print("Counting coal...")
    sleep(0.5)
    local currently_counted
        currently_counted =0
    for j=1,16,1 do
        currently_counted = currently_counted + turtle.getItemCount(j)
        total_counted = total_counted + turtle.getItemCount(j) end
    print(clear_line)
    print("Transfering ", currently_counted, " pieces of coal...")
    turtle.turnRight()
    turtle.turnRight()
    for i=1,16,1 do
        turtle.select(i)
        turtle.drop() end
    turtle.turnLeft()
    turtle.turnLeft()

    print(clear_screen)
    print("Total coal transferred: ",total_counted)
    sleep(0.5)
    rednet.send(13,total_counted)
    sleep(180)
    end