makeRoom

function dig
  turtle.dig()
  turtle.forward()
  turtle.digUp()
  turtle.digDown()
end

length = int(input("Length: "))
width = int(input("Width: "))

curLength = length
curWidth = width

while curLength > 0 do
  dig
  curLength -= 1
end

turtle.turnRight()

while curWidth < 0 do
  dig
  curWidth -= 1
end