Write a program, in C$++,$ using the following formula:

for any Num $b_b$

$m_{10}={\displaystyle \underset{i=0}{\overset{n-1}{}}}(x_i{b}^i)$

where:

$n$ is the number of digits in $m_b$

$x_i$ is a digit in Num ${?}_b$

$b^i$ is the base of Num ${?}_b$ raised to the $i_{-}$th power

The main program will prompt the user for the number and base.