class Driver $\{$

public static void main$($String$[]$ args$)\{$

int $a=f(8)$;

int $b=$;

$\}$

static int foo$($int a$)\{$

$a\frac{?}{b}=ar(a-2)$;

System.out.print$($a$)$;

return a;

$\}$

static int bar$($int a$)\{$

$a=a-1$;

System. out.print$($a$)$ ;

return $a+2$;

$\}$

$\}$