How do I read a full name that is separated by a comma from a file in C++?

I am trying to read full names that are separated by commas from a file that I ask the user to type in. In the example I will submit it is about the first ten presidents of the US. Here is my code (I have all the necessary libraries, I am just showing the main function just so I can be told where I am mistaken):

 int main()
{
    const int NUMBER_OF_PRESIDENTS = 50;
    int n = 0;
    string president[NUMBER_OF_PRESIDENTS];

    string fileName;
    ifstream inputFile;

    cout << "Enter name of input file ";
    getline(cin, fileName);

    inputFile.open(fileName.c_str());

    if (inputFile.fail()) {
        cout << "This file does not exist.";
    }

    if (inputFile >> president[n]) {
        n++;
    }

    cout << n << " lines of text read from the input file.\n"
        << "Here are the unsorted names:\n"
        << "--------------------------- \n";

    for (int i = 0; i < n; i++) {
        cout << "[" << (i+1) << "] " << president[i] << endl;
    }

    return 0;
}

The user inputs a txt file names "firstTen.txt" and the following txt is shown:

Washington, George
Adams, John
Jefferson, Thomas
Madison, James
Monroe, James
Adams, John Quincy
Jackson, Andrew
Van Buren, Martin
Harrison, William Henry
Tyler, John

My problem is that I want it to read each line and then go to the next president's name. However when it shows, it only shows up like this: