test

local a
a = 1
while ( a > 0 ) do

while true do
  os.pullEvent("redstone")
  if rs.getInput then

local forward = 3
local rows = 2
local back = forward + rows

while (turtle.getFuelLevel() < (forward + back)) do
  turtle.select(1)
  turtle.refuel(1)
end

for i=1,forward do
  turtle.forward()
end

for i=1,rows do
  turtle.dig()
  turtle.forward()
  turtle.turnLeft()
  turtle.dig()
  turtle.turnRight()
  turtle.turnRight()
  turtle.dig()
  turtle.turnLeft()
end

turtle.turnRight()
turtle.turnRight()

for i=1,back do
  turtle.forward()
end

turtle.turnRight()
turtle.turnRight()

  break
 end
end
end