[Discuss-gnuradio] How can I skip N ites for each input?

[Songsong Gee]

I know there is a block 'Skip Head'

When I use it, however, I don't think that it works as I expected
I expected that like this:

Suppose a sequence 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
(one 1, seven 0's and repeat forever)
I want to take just '1' for EVERY time
So I place and connect 'Skip Head' block and set 'Num items' 7, which means it skips first 7 items.

In fact, as my guess and experiment, it just skips the very first 7 items!
In short, I have 800 items and use 'Skip Head' with 7 skips,
it passes 793 items. I expected 100 items! (800 / (7 + 1))