Hello everyone!

I'm a newbie here, so please don't hate me if I'm asking a stupid question!

I'm having the table below.

Now, when I start filling data in column B, I want all the rows in column B to get the same value if they match in column A.
For example, if I write "Ana" in B1, I want that value to appear in all the rows that have the same value as A1.
If I write "Laura" in B2, I want to get the value "Laura" also in B3, B5 and B8, because they match in column A (same value - 222)

Any help?

asda.png