Simple help needed with identity matrices and selection

I'm just starting out in MATLAB and doing some homework for a class. What I'm trying to do is select the top-right and bottom-left quadrants of a 6x6 identity matrix and turn those smaller quadrants into identity matrices of themselves without inputting the elements individually. This is the best I could come up with, but clearly the quadrants I'm trying to select just turn into ones instead of identity matrices.

>> A=eye(6,6)

A =

     1     0     0     0     0     0
     0     1     0     0     0     0
     0     0     1     0     0     0
     0     0     0     1     0     0
     0     0     0     0     1     0
     0     0     0     0     0     1

>> A(1:3,4:6)=eye; A(4:6,1:3)=eye

A =

     1     0     0     1     1     1
     0     1     0     1     1     1
     0     0     1     1     1     1
     1     1     1     1     0     0
     1     1     1     0     1     0
     1     1     1     0     0     1

any help would be greatly appreciated!

[Tanner]

Nevermind I just figured it out! If anyone is wondering the problem was that in my second command I should have input:

>>A(1:3,4:6)=eye(3,3);A(4:6,1:3)=eye(3,3)

Answer 1

[José-Luis]

Almost there:

 A=eye(6,6);
 A(1:3,4:6)=eye(3); A(4:6,1:3)=eye(3);

eye without arguments returns 1.