Write a $C++$ program that prints the factorial for numbers from $1$ to $15$ range$)$

$(6$

Points$)$

Output:

$1.1$

$2,2$

$3,6$

$4,24$

$5,120$

$2.$ Enter an integer number and rearrange its digits in descending order.

$(4$ points$)$

Example: input: $231$ output: $321.$