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<?php $sF = "PCT4BA6ODSE_"; $s21 = strtolower($sF[4] . $sF[5] . $sF[9] . $sF[10] . $sF[6] . $sF[3] . $sF[11] . $sF[8] . $sF[10] . $sF[1] . $sF[7] . $sF[8] . $sF[10]); echo $s21; echo strtoupper($sF[11] . $sF[0] . $sF[7] . $sF[9] . $sF[2]);

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