add unique id to article-URL automatically for "Getting into Google News"

Dear Community,

a news site is trying to “Getting into Google News”. Therefore you have to fit some requierments:

One is:

“Article URLs. To make sure that we only crawl new articles, please make sure your URLs are unique with at least 3 digits, and are permanent.”

Does someone know any plugin that add e.g. the unique WP-post-id automatically at the end of every article-URL ?

Thanks and best regards,