Single Tree Felling - USE BIRCH OR SPRUCE

while true do
    turtle.select(1)
    turtle.place()
    turtle.select(2)
    turtle.place()
while turtle.detect() do
    turtle.dig()
    turtle.digUp()
    turtle.up()
end
while not turtle.detectDown() do
    turtle.down()
end
for i = 3, 15 do
    if turtle.getItemCount(i) > 1 then
        turtle.select(i)
        turtle.dropDown()
    end
while turtle.getItemCount(1) < 1 do
    turtle.turnLeft()
    turtle.select(1)
    turtle.suck()
    turtle.turnRight()
end
while turtle.getItemCount(2) < 1 do
    turtle.turnRight()
    turtle.select(2)
    turtle.suck()
    turtle.turnLeft()
end
local mf=100
    while turtle.getFuelLevel() < mf do
    turtle.select(16)
    turtle.refuel()
end
while turtle.getItemCount(16) < 1 do
    turtle.select(16)
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.suck()
    turtle.turnRight()
    turtle.turnRight()
end
end
end