BD$13$

$"1.$ Polygon $...34.34""""3()$ B $42()4($: $)=1$: $$: $31=22=43=511(...)2$: $$: $41=22=283$: $$: $41=32=618$

$2.$:

$0=$Sun, $1=$Mon, $2=$Tue, $..\mathrm{.}6=$Sat$$ int $$

$710$

$$: $100$

$$

$$

$$

$$ int