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<?php function x($n){ for($i=1;$i<$n;$i++){ if($n%$i==0){ $f[]=$i; echo"$i "; } } echo array_sum($f)==$n?"P":"I"; } for($b=1;$b<100000;$b++){ x($b); }
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $f in /in/JZcLv on line 9 Fatal error: Uncaught TypeError: array_sum(): Argument #1 ($array) must be of type array, null given in /in/JZcLv:9 Stack trace: #0 /in/JZcLv(9): array_sum(NULL) #1 /in/JZcLv(13): x(1) #2 {main} thrown in /in/JZcLv on line 9
Process exited with code 255.

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