<!DOCTYPE html>
<script src="./include.js"></script>
<script>
    const test_cases = [
        "1970-W01",

        "2000-W02",
        "2000-W51",
        "2000-W52",
        "2001-W01",
        "2001-W02",
        "2001-W51",
        "2001-W52",
        "2002-W01",
        "2002-W02",
        "2002-W51",
        "2002-W52",
        "2003-W01",
        "2003-W02",
        "2003-W51",
        "2003-W52",
        "2004-W01",
        "2004-W02",
        "2004-W51",
        "2004-W52",
        "2004-W53",
    