What is the output of the following program assume call by reference and dynamic scoping? Main$()\{$ Int x$=10,$ y$=3,$ z$=9$ Function$1($x$,$y$,$z$)$ Printf$("\%$d $\%$d$",$x$,$y$)\}$ Function $1($y$,$x$,$r$)($r$=3$ x$=$x$+4$y$=$y$+$x$+$r$)$