#include <iostream>
#include <fstream>
#include <iomanip>
#include <cmath>

using namespace std;

typedef unsigned char ubyte;
typedef long long int llint;
typedef unsigned long long int ullint;

union container
{ ubyte bv[8];
  short int sv[4];
  int iv[2];
  llint lv;
  double dv; };

void print_binary(ullint n)
{ int shift = 63;
  while (shift >= 0)
  { cout << ((n >> shift) & 1);
    shift -= 1; }
  cout << "\n"; }

void print8chars(ubyte x[])
{ for (int i = 0; i < 8; i += 1)
  { int c = x[i];
    if (c > ' ' && c <= '~')
      cout << (char)c << "   ";
    else if (c == ' ')
      cout << "sp  ";
    else if (c == '\n')
      cout << "\\n  ";
    else if (c == '\r')
      cout << "\\r  ";
    else if (c == '\b')
      cout << "\\b  ";
    else if (c == '\n')
      cout << "\\n  ";
    else
      cout << "x" << hex << setfill('0') << setw(2) << c << " " << dec; } }

int main()
{ 
  container x;
  x.dv = 2 * acos(-1.0);

  cout << "decimal bytes:\n    ";
  for (int i = 0; i < 8; i += 1)
    cout << (unsigned int)x.bv[i] << " ";
  cout << "\n";
  
  cout << "hexadecimal bytes:\n    " << hex;
  for (int i = 0; i < 8; i += 1)
    cout << (unsigned int)x.bv[i] << " ";
  cout << dec << "\n";
  
  cout << "decimal short ints:\n    ";
  for (int i = 0; i < 4; i += 1)
    cout << x.sv[i] << " ";
  cout << "\n";
  
  cout << "decimal ints:\n    ";
  cout << x.iv[0] << " " << x.iv[1] << "\n";

  cout << "decimal long long int:\n    ";
  cout << x.lv << "\n";

  cout << "double:\n    ";
  cout << x.dv << "\n";

  cout << "characters:\n    ";
  print8chars(x.bv);
  cout << "\n";

  cout << "bits:\n    ";
  print_binary(x.lv);
  cout << "\n";
}


/*
    pi  0100000000001001001000011111101101010100010001000010110100011000
  2*pi  0100000000011001001000011111101101010100010001000010110100011000
*/