#include <iostream>
using namespace std;

typedef union utest
{
    int a;
    char b;
    
}utest;

int main(int argc, char** argv)
{
    utest ut;
    ut.a = 0xff030211;

    if (ut.b == 0x11)
    {
        std::cout << "this is le" << std::endl;
    }
    else if (ut.b == 0xff)
    {
        std::cout << "this is be" << std::endl;
    }    
    
    return 0;
}