#include <iostream>
#include <fstream>

int main()
{
uint32_t a=21312321;
std::string header;

header+=(a>>24);
header+=(a<<8)>>24;
header+=(a<<16)>>24;
header+=(a<<24)>>24;

header+=(char) a >> 24;
header+=(char) a >> 16;
header+=(char) a >> 8;
header+=(char) a;


std::cout<<(uint32_t) (unsigned char) header[0]<<std::endl;
std::cout<<(uint32_t) (unsigned char) header[1]<<std::endl;
std::cout<<(uint32_t) (unsigned char) header[2]<<std::endl;
std::cout<<(uint32_t) (unsigned char) header[3]<<std::endl;

uint32_t deser=0;

for (size_t i = 0; i != 4; i++)
{
deser += (unsigned char) header[i] << (3-i)*8;
}

std::cout<<deser<<std::endl;
return 0;
}