strip

function digIt()
  while turtle.detect() do
    turtle.dig()
    os.sleep(0.5)
  end
  turtle.forward()
  while turtle.detectDown() or turtle.detectUp() do
    turtle.digUp()
    turtle.digDown()
  end
end

function placeTorch()
  turtle.down()
  turtle.back()
  turtle.select(16)
  turtle.placeUp()
  turtle.forward()
  turtle.up()
end

function side(m)
 for i = 1, 1 do
   digIt()
 end
 if m % 2 == 0 then
   turtle.turnRight()
   digIt()
 else
   turtle.turnLeft()
   digIt()
 end
end

--function store()
--  if turtle.getItemCount(16) ~= 0 then
--    turtle.dig()
--    turtle.select(1)
--    turtle.place()
--    for i = 3, 16 do
--      turtle.select(i)
--      turtle.drop()
--    end
--    turtle.select(1)
--    turtle.dig()
--  end
--end


local run = 0
local length = 0
local j = 0
local k = 0
local m = 0
local turn = 0

term.write("Number of Strips: ")
run = read()

term.write("Length of Strips: ")
length = read()
length = length - 4


side(m)
m = m + 1

for iter = 1, run do
  if iter == 2 then
    length = length - 1
  end
  for i = 1, length do

    k = i - 1
    j = k % 7

    if j == 1 then
--      placeTorch()
    end

    if turn == (length - 1) then
      side(m)
      side(m)
      m = m + 1
      turn = 0
--      store()
    else
      turn = turn + 1
--      store()
    end
    digIt()
  end
end