What is the output of the below code?

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

stack $s1=$ new stack$(10)$;

stack s$2=$ new stack$(10)$;

for $($int $i=0$;

s$1.$ push $($i$++)$;

s$2.$ push $($s$1.$top $())$ ;

s$1.$ pop$()$ ;

s$2.$ push $($s$1.$top $())$ ;

s$1.$pop$()$ ;

s$2.$ push $($s$1.$top$())$ :

s$1.$pop$()$ ;

system.out.println$($s$1.$top$())$;

System. out.println$($s$2.$top$())$;

$$