mine

--Created by Felipe Alafy
--Country Brazil
--Minecraft version 1.7.10

x = 10 -- blocks to mine: change
z = 0  --Don't change
t = 0  --Don't change
sl = 1 --Don't change

while true do
    if z == x then
        break
    end
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.down()
    turtle.down()
    turtle.forward()
    z = z + 1
    t = t + 1
    if t == 6 then
        turtle.dig()
        turtle.up()
        turtle.dig()
        turtle.up()
        turtle.dig()
        turtle.down()
        turtle.down()
        turtle.select(sl)
        turtle.placeUp()
        turtle.forward()
        t = 0
        t = t + 1
        z = z + 1
    end
end

turtle.turnLeft()
turtle.turnLeft()
z = 0

while true do
    if z == x then
        break
    end
    turtle.forward()
    z = z + 1
end

sl = sl + 1
while true do
    if sl == 17 then
        break
    end
    turtle.select(sl)
    turtle.drop()
    sl = sl + 1
end

turtle.turnLeft()
turtle.turnLeft()