What will print?

#include

int main $($void$)$ o

$$

int$$X$=2,$Y $=1,2=31$

switch $($Y$)$

case $1-$:

printf $("$ed$",$ Y$)$ ;

break;

case $2$ :

printf $("$ed$",$ X$)$ ;

break;

case $3$ :

printf $("$ed$",$ z$)$ ;

break;

default:

printf $("8$d$",$ X$+$Y$+$Z$)$ ;