local turtles = 20
local fpt = 5

function Position()
    turtle.dig()
    turtle.digUp()
    turtle.forward()
    turtle.dig()
    turtle.digUp()
    turtle.forward()
    turtle.turnRight()
    turtle.dig()
    PlaceTurtle()
end

function PlaceTurtle()
    turtle.select(1)
    turtle.place()
    turtle.select(2)
    turtle.drop(ftp)
    turtle.turnLeft()
end

while true do
    if turtle == 0 then
        exit()
    end
    Position()
end