build4

local go = { ... }
local height = 1
local length1 = 0
local length2 = 0
if #go == 1 then
  length1 = tonumber(go[1])
  length2 = tonumber(go[1])
elseif #go == 2 then
  length1 = tonumber(go[1])
  length2 = tonumber(go[2])
elseif #go == 3 then
  length1 = tonumber(go[1])
  length2 = tonumber(go[2])
  height = tonumber(go[3])
else
  print ("Usage: length,width,height(optional)")
  return
end
print("Length:",length1," Width:",length2," Height:",height)

turtle.up()
turtle.down()

local function build()

end