Question Number 149187 by mathdanisur last updated on 03/Aug/21
Commented by mr W last updated on 03/Aug/21
$$=\mathrm{6} \\ $$$${see}\:{Q}\mathrm{74970} \\ $$
Commented by mathdanisur last updated on 03/Aug/21
$${Thank}\:{You}\:{Ser} \\ $$