<?php

$in = fopen('php://stdin', "r");
$out = fopen('php://stdout', "w");

$data = "";
	while (false !== ($in = fgets(STDIN))) {
    	$data .= $in;
	}

$rx = '/(<S\w{9}\sw\w{8}=\"\w{4,5}\">)(\W{1,2}M\w{14}>)(.*)(<\/M\w{14}>)(.*)\W+(<\/S\w{9}>)/im'; 
$re = preg_replace($rx, "$2$3$4\n   $1$5$6", $data);

echo($re);