local input = {...}

for t = 1,input[1],1 do

 for i = 1,3,1 do
  turtle.dig()
  turtle.up()
 end

 if math.fmod(t,6) == 0 then
  turtle.turnLeft()
  turtle.dig()
  turtle.place()
  turtle.turnRight()
 end

 turtle.down()
 turtle.turnRight()
 turtle.forward()
 turtle.turnLeft()

 for i = 1,3,1 do
  turtle.dig()
  turtle.down()
 end

 if turtle.detect() then
 turtle.dig()
 end
 turtle.forward()
 turtle.digDown()
    turtle.down()

 if turtle.detectDown() == false then
    turtle.placeDown()
 end
 turtle.turnLeft()

 turtle.dig()
 turtle.turnRight()
    if turtle.detectDown() == false then
    turtle.placeDown()
 end
end