Is it possible?

I would like to remove the first letter of a phrase.

Something like this.

Code:
int main ()
{
    vector<string> myvector;

    string str = "WPlease enter some integers!";

    myvector.push_back (str);

    myvector.erase(myvector[0][0]);
    cout << myvector[0] << "\n";

    return 0;
}