fuel = turtle.getFuelLevel()
require("math")
 fuel = 500
 
x = 10

for u = 0,x do
  i = 0
  while i < x-u do
    turtle.dig()
    turtle.digUp()
    turtle.digDown()
    turtle.forward()
    i = i+1
    
  end

  i = 0
  turtle.turnRight()
  
  while i < x-u do
    turtle.dig()
    turtle.digUp()
    turtle.digDown()
    turtle.forward()
    i = i+1
  end
end