#include <iostream>

int main(int argc, char** argv)
{
  if(argc ==1)
  {
    std::cout << "no argument given; exiting...";
  }
  unsigned int i=0,len=8;
  std::cout << argv[1][0] << ": ";
  while(len>i)
  {
    if((argv[1][0]&(i<<0)))
    {
      std::cout << "1";
    }
    else
    {
      std::cout << "0";
    }
    ++i;
  }
  std::cout << std::endl;
}