tArgs = {...}
local times

-- if no arguments are passed, assume 1
if tArgs[1] == nil then times = 1
  else
  times = tArgs[1]
end

for i=1,times do
  while not turtle.forward() do end
  if facing == 0 then z = z+1 end
  if facing == 1 then x = x-1 end
  if facing == 2 then z = z-1 end
  if facing == 3 then x = x+1 end
  shell.run("savePos")
end