a

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{

    union a
    {
        unsigned int b;
        unsigned char c[0];
    };

    a m = {0x123456};
    cout<<setiosflags(ios::showbase);
    for(int i = 0; i < 1000; i++)
        cout<<hex<<i<<" : "<<int(m.c[i])<<endl;


    return 0;
}