Count of circles in a number aka 2581 by teebee(ddudz)

<?for(;;)echo preg_match_all(~\xd0\xd7\xc0\xc28\xd6\x83\xa40689\xa2\xd0,~fgets(STDIN),$m),~\xf5;

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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