#include

void f$($int num$1,$ int num$2,$ int $*$ptr$3)\{$

int temp $=*($ptr$3+$ num$1)$;

ptr$3[$num$1]=$ ptr$3[$num$2]$;

$*($ptr$3+$ num$2)=$ temp;

$\}$

int main$($void$)\{$

int a $=3$;

int b $=0$;

int c$[]=\{13,3,21,8,2,5\}$;

f$($a$,$ b$,$ c$+1)$;

printf$("\%$i$,\%$i$,\%$i$,\%$i$,\%$i$,\%$i

$",$ c$[0],$ c$[1],$ c$[2],$ c$[3],$ c$[4],$ c$[5])$;

return $0$;

$\}$

Which one of the following shows the output of the program?