Turtle Bomber

print "Booting up TurtleBomberV1"
print "How long would you like to explode?"
h = read()
for i=1,h,1 do
  turtle.select(1)
    turtle.forward()
      turtle.placeDown()
        rs.setOutput("bottom",true)
          sleep(0,1)
            rs.setOutput("bottom",false)
end
print "Bombing done. Shaftminer Shutting down"