i,j = turtle.inspect()
turtle.select(1)
while(true)
do
i,k = turtle.inspect()
if j.metadata == k.metadata then
	turtle.dig()
	turtle.place()
	turtle.dropUp()
	turtle.select(2)
	turtle.place()
	turtle.dropUp()
	turtle.select(3)
	turtle.place()
	turtle.dropUp()
	turtle.select(4)
	turtle.place()
	turtle.dropUp()
end
end