<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
            <sitemap>
            <loc>https://m2data.net/sitemap_ru_1.xml</loc>
        </sitemap>
            <sitemap>
            <loc>https://m2data.net/sitemap_ru_2.xml</loc>
        </sitemap>
            <sitemap>
            <loc>https://m2data.net/sitemap_ru_3.xml</loc>
        </sitemap>
            <sitemap>
            <loc>https://m2data.net/sitemap_ru_4.xml</loc>
        </sitemap>
    </sitemapindex>
