what's the output? $*$

int main$()\{$

int $x=8$;

while

cout $x$;

if

cout $"$A$"$;

break;

$\}$ else if

cout $<mtext\; id="EditorElement\_73673"></mtext><mi\; id="EditorElement\_73674">"</mi>$B$"$;

$\}$ else $\{$

cout ${?}^1{C}^n$;

break;

$\}$

x$--$;

$\}$

return $0$ ; $\}$

$202020$

$202021$

$32011$