Querying Different Categories in Different Loop With Different Offsets

I have four loops. In the first loop I want to display all current articles from all categories (breaking news). In the 2nd loop only articles with the category 4,5,6,7 should be displayed. But if in the 1st loop an article from these categories were published, this newest article should not appear in the 2nd loop. I would be very grateful about helpful tips and code snippets.