C++ max() Function

#include<iostream>
using namespace std;
int main()
{
    int a, b, c;

    char an, ch;

    cout << "Enter Two Number : ";
    cin >> a >> b;
    cout << endl;

    cout << "Enter Two Character : ";
    cin >> an >> ch;
    cout << endl;

     c = max(a, b);

     cout << "Maximum Value :: " << c << endl;

     cout << "Maximum Character :: " << max(an, ch) << endl;

    return 0;
}