Please complete the following program. USE C++

Cut and paste your code in the Submit Text field to submit when you are done; or submit your source code (.cpp file).

#include

using std::cout;

using std::cin;

int main() {

// create a while loop to

// 1) ask the user to input a letter.

// 2) if the letter is not '0', display the letter. Go back to 1).

// 3) if the letter is '0', exit the loop.

}