What is the value of $\text{'}r\text{'}$ after the following code is executed?

int $r=0$;

for $($int $i=0$; $i<mn\; id="EditorElement\_122030">1</mn><mn\; id="EditorElement\_122031">0</mn><mn\; id="EditorElement\_122032">0</mn>$; $i++)\{$

$r=(379**r+313)\%499$;

$\}$