startup

function turn()
  do
  turtle.attack()
  turtle.turnLeft()
  turtle.attack()
  T=T+1 print(T)
  end
end

function move()
  if T==4 then
    turtle.forward()
    T=0 print(T)
    M=M+1
  end
end
T=0
M=0
function spin()
  if M==9 then
    turtle.turnLeft()
    turtle.turnLeft()
    M=0
  end
end
R=(redstone.getInput ("back"))

while R do
    turn()
    sleep(.5)
    move()
    sleep(.5)
    spin()

end