Mining Turtle 3x3 1.10.2 + Enderchest

print("Place your default colored enderchest on the slot most to the right-down")
print("Waiting for number of reps, each rep does a 3x3 nine blocks forward, a total of 81 blocks in volume")
local reps = tonumber( read() )
for i=1, reps do
for i=1, 9 do
turtle.dig()
turtle.turnLeft()
turtle.forward()
turtle.turnRight()
turtle.dig()
turtle.turnRight()
turtle.forward()
turtle.forward()
turtle.turnLeft()
turtle.dig()
turtle.turnLeft()
turtle.forward()
turtle.turnRight()
turtle.up()
turtle.dig()
turtle.turnLeft()
turtle.forward()
turtle.turnRight()
turtle.dig()
turtle.turnRight()
turtle.forward()
turtle.forward()
turtle.turnLeft()
turtle.dig()
turtle.turnLeft()
turtle.forward()
turtle.turnRight()
turtle.down()
turtle.down()
turtle.dig()
turtle.turnLeft()
turtle.forward()
turtle.turnRight()
turtle.dig()
turtle.turnRight()
turtle.forward()
turtle.forward()
turtle.turnLeft()
turtle.dig()
turtle.turnLeft()
turtle.forward()
turtle.turnRight()
turtle.up()
turtle.forward()
end
turtle.select(16)
turtle.turnLeft()
turtle.turnLeft()
turtle.place()
for i=1, 15 do
turtle.select(i)
turtle.drop()
end
turtle.select(16)
turtle.dig()
turtle.turnLeft()
turtle.turnLeft()
end