harvest

function move()
   turtle.forward()
   turtle.turnLeft()
   turtle.dig()
   turtle.turnRight()
end

function turnL()
   turtle.forward()
   turtle.turnLeft
   turtle.forward()
   turtle.forward()
   turtle.turnLeft()
end

function turnR()
   turtle.forward()
   turtle.turnRight()
   turtle,turnRight()
end

for i = 1,5 do
   move()
end

turnL()

for i = 1,5 do
   move()
end

turnR()

for i = 1,5 do
   move()
end

turnL()

for i = 1,5 do
   move()
end