h = 0 -- уровень высоты
c = 0 -- счетчик
r = true -- направо
l = false -- налево

while c ~= 10 do
    while h == 50 do
        turtle.digUp()
        turtle.up()
        turtle.turnLeft()
        turtle.dig()
        turtle.forward()
        turtle.turnRight()
        l = true
        r = false
        h = 0
        c = c + 1

        while r == true do
            for i = 1, 4 do
                turtle.dig()
                turtle.forward()
            end
                turtle.turnRight()
                turtle.dig()
                turtle.forward()
                turtle.turnRight()
                h = h + 1
                r = false
                l = true

            while l == true do
                for i = 1, 4 do
                turtle.dig()
                turtle.forward()
                end
                turtle.turnLeft()
                turtle.dig()
                turtle.forward()
                turtle.turnLeft()
                h = h + 1
                l = false
                r = true
            end
        end
    end
end