for f = 1, 50 do

for a = 1, 100 do
turtle.down()
end

turtle.digDown()
turtle.down()
for z = 1, 8 do

for b = 1, 15 do
turtle.dig()
turtle.forward()
end

turtle.turnRight()
turtle.dig()
turtle.forward()
turtle.turnRight()

for c = 1, 15 do
turtle.dig()
turtle.forward()
end

turtle.turnLeft()
turtle.dig()
turtle.forward()
turtle.turnLeft()

end

turtle.turnRight()
turtle.back()
turtle.place()

for d = 1, 15 do
turtle.back()
end

turtle.turnLeft()

for e = 1, 100 do
turtle.up()
end

for e = 1, 9 do
turtle.drop()
end

end