Example Header: /* Author: Jane Doe (Jane. Doe@my.unt.edu) Date: Instructor: Description: A small description in your own words that describe what the program does. Any additional flags needed to allow the program to compile should also be placed here. A. Using printf/scanf Write a C++ program called Lab4A.cpp that does the following: Prompts for and reads in two integer variables a and b using printf and scanf appropriately Prompts for and reads in two double variables c and d using printf and scanf appropriately Prints out all variables that the user just entered and a meaningful sentence (e.g., "You just entered ...") using printf o Display variable d in scientific format Before writing the code, you may want to write out the algorithm, or steps, on paper of how you propose to solve this problem. Working out the arithmetic by hand is also recommended to ensure that you are outputting the correct values for each variable. Be sure to compile and run your code to make sure it outputs the expected output. Note that you will submit this file to Canvas