local tArgs = { ... }
local dis = tonumber(tArgs[1])

hs = 1
st = 5
cobble = 9


-- Functions

function turnaround()
 turtle.turnRight()
 turtle.turnRight()
end

 function placedown(item)
  turtle.detect()
  if (turtle.detectDown == true) then
   turtle.digDown()
  end
  turtle.select(item)
  turtle.placeDown()
end

 function placefront(item)
   turtle.detect()
  if (turtle.detectDown == true) then
   turtle.dig()
  end
  turtle.select(item)
  turtle.place()
end

function placerow()
 placefront(st)
 placedown(gr)
 turnaround()
 turtle.forward()
 placedown(gr)
 turtle.forward()
 placedown(gr)
 placefront(st)
 turnaround()
end

function detectright()
 turtle.turnRight()
 turtle.forward()
 if (turtle.forward() == true) then
  turtle.digForward()
 end
turtle.forward()
end

-- Main Script
turtle.forward()
turtle.turnRight()
turtle.forward()
placerow()