prefix to postfix by clock

<?for($s=fread(STDIN,$n=1e4);$n--;)$s=preg_replace("/(.) (\d\S*) (\d\S*)/",~\xdb\xcd\x87\xdb\xcc\x87\xdb\xce,$s,1)?><?=strtr($s,x,~\xdf);

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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