Tunnel with storage

--créer un tunnel de 3*3 et torche tout les 10 blocs.
--Slot 1 : IE crate, Slot 2 : fuel, slot 3 : torches

l = 10
t = 0
print("Slot 1 : IE crate, Slot 2 : fuel, slot 3 : torches")
print("longueur ?")
r = tonumber(read())

 function store() do
    if(turtle.getItemCount(1) ==1) then
        turtle.select(1)
        turtle.placeDown()
        for i=4,16 do

            turtle.select(i)
            detail =turtle.getItemDetail()
            if(detail ~= nil and detail.name== "minecraft:cobblestone") then
            turtle.drop()
            else
            turtle.dropDown()
            end
        end
        turtle.select(1)
        turtle.digDown()
    end
 end
 end
while(r>0) do
if(turtle.getFuelLevel() == 0) then
turtle.select(2)
turtle.refuel(1)
end
print("longueur restante : "..r)
turtle.dig()
turtle.digUp()
turtle.digDown()
if(l >= 10) then
store()
turtle.select(3)
turtle.placeDown()
l = 0
end
while(turtle.forward() == false) do
turtle.dig()
end
turtle.turnLeft()
turtle.dig()
while(turtle.forward() == false) do
turtle.dig()
end
turtle.digUp()
turtle.digDown()
turtle.turnLeft()
turtle.turnLeft()
while(turtle.forward()==false) do
turtle.dig()
end
turtle.dig()
while(turtle.forward() == false) do
turtle.dig()
end
turtle.digUp()
turtle.digDown()
turtle.turnLeft()
turtle.turnLeft()
while(turtle.forward() == false) do
turtle.dig()
end

turtle.turnRight()
l = l + 1
r = r - 1
if(turtle.getFuelLevel() == 0) then
f = 1
while(f==1) do
turtle.select(2)
term.clear()
term.setCursorPos(1,1)
print("Rechargez du fuel dans le slot 1")
turtle.refuel()
sleep(0.5)
if(turtle.getFuelLevel() > 0) then
f = 0
end
end
end
end
print("fini!")