#include <iostream>
#include <algorithm> 

int main()
{

    int a, b;

    a = 1;
    b = 2;

    std::cout << "Hello, World!";

    a >?= b;

    printf ("\na = %d", a);

    a = 1;
    b = 2;

    a = std::max (a,b);

    printf ("\na = %d", a);
    
    return 0;
}