local minFuelAmount = 200
for i=1, 14 do
turtle.select(i)
if turtle.getFuelLevel() < minFuelAmount then
  turtle.select(9)
  turtle.refuel()
  turtle.select(i)
end
turtle.forward()
for i=1, 27 do
turtle.placeDown()
turtle.forward()
end
turtle.turnRight()
turtle.forward()
turtle.turnRight()
if turtle.getFuelLevel() < minFuelAmount then
  turtle.select(9)
  turtle.refuel()
  turtle.select(i)
end
turtle.forward()
for i=1, 27 do
turtle.placeDown()
turtle.forward()
end
turtle.turnLeft()
turtle.forward()
turtle.turnLeft()
end