//************************************************************** v. 10/14/04
// Purpose:  test conversion of sign-magnitude to twos complement
//     Code serves only to illustrate one approach to converting
//     sign-magnitude to twos-complement representations.
// Name:     cmo
// Creation date:  10/13/04
// Reuse Instructions:
//    The sm2tc function might be reused even though it's a one liner.
//**************************************************************************

using namespace std;

#include <iostream> // for cin, cout

short sm2tc( unsigned short x )
{
  if ( x < 32768 )
    return( x );
  else
    return( -(x-32768) );
}

int main()
{

  unsigned short x;  // assumed to be a 16 bit sign-magnitude representation
  short y;           // a 16 twos-complement representation of the same value

  cin >> x;
  while ( cin ) {
    y = sm2tc( x );
    cout << y << endl;
    cin >> x;
  }

}//end of main