for i = 1, 6 do
    for i = 1, 29 do
        turtle.dig();
        turtle.forward();
    end

    turtle.turnLeft();

    for i = 1, 14 do
        turtle.dig();
        turtle.forward();
    end

    turtle.turnLeft();

    for i = 1, 29 do
        turtle.dig();
        turtle.forward();
    end

    turtle.turnLeft();

    for i = 1, 14 do
        turtle.dig();
        turtle.forward();
    end

    turtle.turnLeft();
    turtle.digUp();
    turtle.up();
end