The string$-$to$-$integer program presented in Section $6\mathrm{.}5$ converts a string of decimal digits to an

unsigned integer using successive multiplications by $10$ and additions. It is also possible to

convert a string of digits in any radix system to an integer, using successive multiplications by

the radix value and additions. Rewrite the string$-$to$-$integer program asking the user to input a radix value between $2$ and $10$ and a string of digits in the specified radix system. For example,

if the radix value is $8$ then the string can only have octal digit characters from $\text{'}0\text{'}$ to $\text{'}7\text{'}.$

Convert the string of digit characters into an unsigned integer and display the value of the

unsigned integer.