Question Number 88865 by tw000001 last updated on 13/Apr/20
Commented by tw000001 last updated on 13/Apr/20
$$\mathrm{I}\:\mathrm{don}'\mathrm{t}\:\mathrm{know}\:\mathrm{who}\:\mathrm{the}\:\mathrm{question}\:\mathrm{can}\:\mathrm{solve}. \\ $$