program whatever(input,output);
  var 
    x: integer;
    y: real;
  function foo(x: integer; y: real): integer;
    var 
      r: real;
  begin
    r := 3.0;
    foo := x+1;
    if (x < 10) then
      y := r;
  end;

begin
  readln(x);
  writeln(foo(x,2.0));
end.