template exc

#include <iostream>
using namespace std;
template <class A>
A MAX(A a,A b);
int main() {
    int x , y;
    cout << "enter int number X : ";
    cin >> x;
    cout << "enter int number Y : ";
    cin >> y;
    cout << "the maximum number is " << MAX(x, y)<<endl;
    float z, w;
    cout << "enter float number X : ";
    cin >> z;
    cout << "enter float number Y : ";
    cin >> w;
    cout << "the maximum number is " << MAX(z, w)<<endl;
    char a, b;
    cout << "enter char X : ";
    cin >> a;
    cout << "enter char Y : ";
    cin >> b;
    cout << "the maximum char is " << MAX(a, b)<<endl;
}
template <class A>
A MAX(A a,A b){
    return (a > b ? a : b);
}