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<?php $count = 5; $last = 4; foreach (range(-5, 4, 1) as $v) { print $v . ': ' .$v % $count . ' ' . (($v % $count) + $count) % $count . "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
-5: 0 0 -4: -4 1 -3: -3 2 -2: -2 3 -1: -1 4 0: 0 0 1: 1 1 2: 2 2 3: 3 3 4: 4 4

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