#include <iostream>

int main ()
{
    unsigned int ipAddress = 0x12345678;
    std::cout   << ((ipAddress & 0xFF000000) >> 24) << "."
                << ((ipAddress & 0x00FF0000) >> 16) << "."
                << ((ipAddress & 0x0000FF00) >> 8) << "."
                << (ipAddress & 0x000000FF) << std::endl;
    return 0;
}