Using the following code segment:

void proc $($int x$,$ int y$,$ int z$)\{$

x$=$y$+$z;

y$=$x$+$z;

z$=$x$+$y;

cout $<<$ x $<<""<<$ y $<<""<<$ z $<<$ endl;

$\}$

int main $()\{$

int a $=1,$ b $=1,$ c $=1,$ d $=1$;

proc $($a$,$ b$,$ c$)$;

cout $<<$ a $<<""<<$ b $<<$ endl;

proc $($d$,$ d$,$ d$)$;

cout $<<$ a $<<""<<$ b $<<$ endl;

$\}$

Show the output if:

call by value$-$result is used

call by reference is used