<?php

$tt = $_POST['tt'];

if ($tt[1] and $tt[2] and $tt[3]) {
print "1 2 3";
}elseif($tt[1] and $tt[2] || $tt[3]) {
if($tt[1] and $tt[2]) {
print "1 2";
}if($tt[1] and $tt[3]) {
print "1 3";
}elseif($tt[2]){
print 2;
}else{
print 1;
}

?>