$1.$ Given the following function definition

void calc $($int a$,$ int& b$)$

$\{$

int c;

c $=$ a $+2$;

a $=$ a $*3$;

b $=$ c $+$ a;

$\}$

What is the output of the following code fragment that invokes calc?

$($All variables are of type int$)$

x $=1$;

y $=2$;

z $=3$;

calc$($x$,$ y$)$;

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