BF$12"()$ t you?$)$

$$ N $1<=$N$<=1000$

$$

N $$ N $2$N$1()$ a $\text{'}*\text{'}\text{'}$~$\text{'}($tilde$)$

$$

$$

$1$

$$

$*$

$$

$2$

$$

~$**$

$**$~

Python $3"$