<?php
if (preg_match('/^(?=.{6})(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*[\W_])/', 'HalloWord~2012')) {
print 'YES';
}
else
{
print 'NO';
}
?>
PD9waHAKaWYgKHByZWdfbWF0Y2goJy9eKD89Lns2fSkoPz0uKltBLVpdKSg/PS4qW2Etel0pKD89LipbMC05XSkoPz0uKltcV19dKS8nLCAnSGFsbG9Xb3JkfjIwMTInKSkKewogIHByaW50ICdZRVMnOwp9CmVsc2UKewogIHByaW50ICdOTyc7Cn0KPz4=