/* test	what happens if there are no parentheses */

class Main {
   void main() {
      int x;
      int y;
      int z;

      x = 5;
      y = 10;
      z = 100;
      
      write( x + y + z); writeln();
      /*  */
      write( - x + y - z); writeln();
      
      /* should output 205 */
      write( x + 2 * z); writeln();

      write( x + 2 * z / x + 1); writeln();
      write(+x); writeln();
      
   }
}