CCMining

function mine(x)
  counter = 0
  repeat
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    counter = counter + 1
  until counter == x
end

function turnAround()
  turtle.turnRight()
  turtle.turnRight()
end

function moveForward(x)
  counter = 0
  repeat
    turtle.forward()
    counter = counter + 1
  until counter == x
end

function placeTorch()
  turtle.up()
  turtle.select(2)
  turtle.back()
  turtle.place()
  turtle.down()
end

function stripMine(x)
  for i = 0, x, +1
  do
    mine(3)
    turtle.turnRight()
    mine(5)
    placeTorch()
    turnAround()
    moveForward(4)
    mine(5)
    placeTorch()
    turnAround()
    moveForward(4)
    turtle.turnLeft()
  end
end

turtle.refuel()
stripMine(2)