<p>Given a <code>date</code> string in the form&nbsp;<code>Day Month Year</code>, where:</p>

<ul>
	<li><code>Day</code>&nbsp;is in the set <code>{&quot;1st&quot;, &quot;2nd&quot;, &quot;3rd&quot;, &quot;4th&quot;, ..., &quot;30th&quot;, &quot;31st&quot;}</code>.</li>
	<li><code>Month</code>&nbsp;is in the set <code>{&quot;Jan&quot;, &quot;Feb&quot;, &quot;Mar&quot;, &quot;Apr&quot;, &quot;May&quot;, &quot;Jun&quot;, &quot;Jul&quot;, &quot;Aug&quot;, &quot;Sep&quot;, &quot;Oct&quot;, &quot;Nov&quot;, &quot;Dec&quot;}</code>.</li>
	<li><code>Year</code>&nbsp;is in the range <code>[1900, 2100]</code>.</li>
</ul>

<p>Convert the date string to the format <code>YYYY-MM-DD</code>, where:</p>

<ul>
	<li><code>YYYY</code> denotes the 4 digit year.</li>
	<li><code>MM</code> denotes the 2 digit month.</li>
	<li><code>DD</code> denotes the 2 digit day.</li>
</ul>

<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>

<pre>
<strong>Input:</strong> date = &quot;20th Oct 2052&quot;
<strong>Output:</strong> &quot;2052-10-20&quot;
</pre>

<p><strong class="example">Example 2:</strong></p>

<pre>
<strong>Input:</strong> date = &quot;6th Jun 1933&quot;
<strong>Output:</strong> &quot;1933-06-06&quot;
</pre>

<p><strong class="example">Example 3:</strong></p>

<pre>
<strong>Input:</strong> date = &quot;26th May 1960&quot;
<strong>Output:</strong> &quot;1960-05-26&quot;
</pre>

<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li>The given dates are guaranteed to be valid, so no error handling is necessary.</li>
</ul>

class Solution:
    def reformatDate(self, date: str) -> str:
        parts = date.split()
        months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
        return parts[2] + "-" + ("0" + str(months.index(parts[1]) + 1))[-2:] + "-" + ("0" + parts[0][:-2])[-2:]
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