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<?php function x($n){for($i=1;$i<=$n;$i++){$n%$i==0&&$i!=$n?$f[]=$i&printf("$i "):0;}printf(array_sum($f)==$n?"P":"I");}x(28);
Output for git.master, git.master_jit, rfc.property-hooks
1 2 4 7 14 I

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