function select()
while not turtle.select(slot) do
slot = slot + 1
end
end

function placeDown()
select()
turtle.placeDown()
end

function move()
if forward () then
turtle.forward()
posX = posX + 1
end

if backward () then
turtle.backward()
posX = posX - 1
end

end

function newline()
turtle.left()
turtle.forward()
turtle.right()

if forward () then
forward = false
backward = true
end

if backward () then
forward = ture
backeward = false
end

end

slot = 2
forward = true
blockcount = 0

print("Starting to work")
turtle.select(1)

if turtle.refuel() then

turtle.forward()
turtle.turnRight()

for posZ = 0, 22, 1 do

for posY = 0, 22, 1 do
blockcount = blockcount + 1
if blockcount not 5 then
placeDown()
end
if blockcount 5  then
blockcount = 0
end

move()
end

newline()

end

end

else do
print ("Please fill in fuel in slot 1, 528 movement required")
end