#include <iostream>
using namespace std;

// illustrates use of char as an integral type

int main()
{
    char first,last;
    cout << "enter first and last characters" << endl;
    cout << "with NO SPACE separating them: ";
    cin >> first >> last;

    cout << first;        // print first char (fence post problem)
    char k;
    for(k=first+1; k <= last; k++)
    {   cout << " " << k;
    }
    cout << endl;
    return 0;
}