$1.$ Write a C$++$ program that does the following:

a$.$ Create a C$++$ file with the name problem$3.$cpp$.$

b$.$ Write the function twoLeftDigitSum$$using recursion, which returns the sum of the leftmost two digits of its positive integer parameter.

c$.$ If the parameter is a single digit integer, twoLeftDigitSum$$returns that digit.

d$.$ Type in the following main function into your C$++$ program file:

int main$()$

$\{$

$$cout $<<$ twoLeftDigitSum$(567982)<<$ endl; $//$ prints $11$

$$cout $<<$ twoLeftDigitSum$(107982)<<$ endl; $//$ prints $1$

$$cout $<<$ twoLeftDigitSum$(7)<<$ endl; $//$ prints $7$

$$

$$return $0$;

$\}$

$$