Programming

What will be the output of the following program assuming that parameter passing is

(i) call by value
(ii) call by reference
(iii) call by copy restore

      procedure P{x, y, z};
                        begin y:y+1; z: x+x end; 
      begin
                        a:= b:= 3;
                        P(a+b, a, a);
                        Print(a) 
      end.