Draw a simple flowchart and write the pseudocode to represent the logic of a computer program that includes simple input and output with the user of the program $($who may not be you!$).$ Your program should involve an arithmetic calculation of your choice $($e$.$g$.$ adding or subtracting two numbers$).$

The user should provide inputs and the program should calculate or process the inputs and provide output.

Make sure that your pseudocode declares and names all variables used, and specifies data type $($e$.$g$.$ integer, decimal$/$float$,$ etc.$).$ Your program must prompt the user with an output message when input is expected. For example, output a message like, "Input the first integer:" when an integer input is expected.