Vlookup return value from a different row

Hi,

I'm trying to use the VLOOKUP function to return value from a row below.
I have a large list of numbers (sheet Data) for the entire year with 8 different items per week, and I need to create a list for each week with group of 8 unique items as shown on "Week 21" sheet (I did it manually by copy and paste, highlights are just for the example, don't need to be at the original file). After the first 8th rows, it should start over until it gets to the last value on sheet "Week 21".
Basically, Column B on sheet "Week 21" should be statics, and once I change value on column A it should return values as in the example automatically.

Thanks