String operations

Inside the my$\_$code$()$ function, define three string objects $("$object$"$ is preferred over "variable" because string is a class$)$ named alphabetic, numeric, and alphanumeric. All strings should initially be empty. Your output should be written to sout stringstream. Perform the following operations on these strings:

Using the length$()$ member function, output $($to sout stringstream$)$ the length of the alphabetic string and an endline character.

Assign the lowercase letters of the alphabet in ascending order followed by the uppercase letters of the alphabet in ascending order to alphabetic.

Again, using the length$()$ member function, output $($to sout stringstream$)$ the new length of the alphabetic string and an endline character.

Using string indexing, output $($to sout stringstream$)$ the last alphabetic letter and an endline character. Remember that string and array indices start at $0.$

Assign the digits in ascending order to numeric.

Assign the alphabetic string to the alphanumeric string.

Append the numeric string to the alphanumeric string.

Using the find$()$ member function, output $($to sout stringstream$)$ the position of $"$YZ$01"$ in the alphanumeric string and an endline character.

Using the substr$()$ member function, output $($to sout stringstream$)$ the alphanumeric substring that starts at index $45$ and is $10$ characters long and an endline character. Use C$++$ to complete this work