<?php
while($line = fgets(STDIN)){
    $tmp[] = trim($line);
}

foreach($tmp as $val){
    $arr[] = explode(" ", $val);
}

$stringA = str_split($arr[0][0]);
$stringB = str_split($arr[1][0]);

$stringCount = count($stringA);

$bool = false;
for($i=0; $i<$stringCount; $i++){
    if(!in_array($stringA[$i], $stringB)){
        $bool = false;
        break;
    }else{
        $bool = true;
    }
}

if($bool){
    echo "YES";
}else{
    echo "NO";
}

?>