<?php
$originalInput = $input;
$resevedNum = "";
for ($i = 1; $i <= $numberOfDigits; $i++) {
$res = $input % 10;
if ($res != 0) {
$resevedNum .= $res;
}
$input = (int) ($input / 10);
}
echo $resevedNum . "\n";
if ($resevedNum == $originalInput) {
echo "YES";
} else {
echo "NO";
}
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