Question $9$

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 $i=0$;$i<mn\; id="EditorElement\_4082891">1</mn><mn\; id="EditorElement\_4082892">0</mn>$;$i++$

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 $())$;

Your answer:

$12$

$23$