<?php 
/** 
 * Created by PhpStorm. 
 * User: hakob 
 * Date: 5/9/16 
 * Time: 11:57 AM 
 */ 
 
$s = "({[]})"; 
$s1 = "({[]})({{}))"; 
echo $s1 .'     '; 
echo $s .'    '; 
include 'BracketParser.php'; 
 
if(BracketParser::parse($s)) { 
    echo "Is OK  \n"; 
}else { 
    echo "Wrong bracket series\n"; 
} 
if(BracketParser::parse($s1)) { 
    echo "Is OK  \n"; 
}else { 
    echo "Wrong bracket series\n"; 
} 
 
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