<?php
$val = "a";
$sum = 0.0;
for ($i = 0; $i < 99; ++$i) {
$sum += $after-$before;
}
PD9waHAKCiR2YWwgPSAiYSI7CiRzdW0gPSAwLjA7CiRjb2RlID0gc3ByaW50ZignIiVzIjsnLCBzdHJfcmVwZWF0KCd7JHZhbH0nLCA5OTk5KSk7Cgpmb3IgKCRpID0gMDsgJGkgPCA5OTsgKyskaSkgewoJJGJlZm9yZSA9IG1pY3JvdGltZSh0cnVlKTsKCWV2YWwoJGNvZGUpOwoJJGFmdGVyID0gbWljcm90aW1lKHRydWUpOwoJJHN1bSArPSAkYWZ0ZXItJGJlZm9yZTsKCXVuc2V0KCRiZWZvcmUsICRhZnRlcik7Cn0KCnByaW50ZigiJWYiLCAkc3VtKTsKCg==