1x1 runnel w/ Roof

print("How far?") -- Ask

local n = io.read() -- Reads the input and n=input

for x=1,n do --Do program this many times
 if turtle.getItemCount(16) > 0 then --reboot if items are in slot 16 eg. turtle=full
  print "Make a program to empty"
  turtle.reboot()
 end
 if turtle.detectUp() == false then
  turtle.placeUp()
 end
 if turtle.detect() == true then
  turtle.dig()
 end
 turtle.forward()
end