C++ only C++

Exercise #1: Design and implement a program (name it Print Sum) that prompts the user for an integer values between 1 and 100. The program then uses a while loop to determine and print out the sum of all values between 1 and the entered value. The program rejects invalid input values with proper message such "Invalid Input. Try again." Document your code and properly label the input prompt and the outputs as shown below. Sample run 1: You entered: Sum of values: 10 55 Sample run 2 : You entered: 120 Invalid input. Try again. Sample run 3: You entered: Sum of values: 20 210