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<?php function x($n){for($i=1;$i<$n;$i++){if($n%$i==0){$f[]=$i;echo"$i ";}}printf(array_sum($f)==$n?"P":"I");}x(42);
Output for git.master, git.master_jit, rfc.property-hooks
1 2 3 6 7 14 21 I

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