MATLAB: How to delete an element from a cell

delete numbers

I have a column in matlab with data written this way:

19970422

30980524

63098754

etc …

And I only want to have the first 4 numbers (preferably as a new variable), for instance like this:

1997

3098

6309

How can I do it? Thanks a lot for your help.

Thats easy

X=[19970422 30980524 63098754]
New_X=floor(X/1000)

A(1,:)=[]

   A = [   List of numbers    ];
   x = floor(A/1000);
   T1 = A( x == 2004 );
   T2 = ...
   ...