Find the index of an interval of values in cell array

I have a cell array 1X500, and inside evey cell 6000 value.

I want to find the index on the values (it has to be between 1 and 500) if the values s are : 500<s< 956

I tried with

index = cellfun(@(x) 500 < x < 956, SS, 'uniform', false);

But I didnt get the index

Answer 1

[Stephen23]

index = cellfun(@(x) 500<x & x<956, SS, 'uniform', false);

[Tesla]

It gaves the same results,

I want to return just the index of which cell we have 500<x & x<956. for example getting an output like [ 2 10 23 89 200]

[Stephen23]

index = find(cellfun(@(x) any(500<x(:) & x(:)<956), SS))