change value in cells based on conditions

how can i get the expected output like this?

 [11 11 22 22 33 33 44; 

 11 11 33 33 44 22 22;

 22 22 11 11 33 33 44;

 22 22 33 33 44 11 11; 

 33 33 44 11 11 22 22; 

 33 33 44 22 22 11 11;

 44 11 11 22 22 33 33;

 44 22 22 11 11 33 33]

the conditions are:

1. each value ( 11,22,33) must be appeared 2 times continously.

11 22 = 11 11

11 33 = 11 11

22 11 = 22 22

22 33 = 22 22

33 11 = 33 33

33 22 = 33 33

2.after value 33 33 must 44

33 33 11 = 33 33 44

33 33 22 = 33 33 44

33 33 33 = 33 33 44

3. after value 44 cannot be value 33 and 44

44 33 = 44 11 

44 44 = 44 22

the inputs are undergoing selection,crossover and mutation process.

input :

a=[11 22 33 44]

I need help to code this problem.

Thank you for your help.

Answer 1

[Andrei Bobrov]

A = {[11 11] [22 22] [33 33 44]}
idx = sortrows(perms(1:3));
A2 = A(idx);
out = cell2mat(arrayfun(@(i1)[A2{i1,:}],(1:size(idx,1))','un',0));
out = [out;out(idx(:,end) == 3,circshift(1:size(out,2),[0 1]))];