Shuffling a cell array with constrains

I created a cell array with 14 elements repeated 11 times. Now I need to shuffle the array with a constraint that the elements should not repeat in succession (ie, two 'bun' should not come together)

Stimuli={'bun','bin','din','gun','gin','kun','kin','pun','pin','ʃun','ʃin','sun','tun','tin'}; B=repmat (Stimuli,1,11)

Thank you, Varghese

Answer 1

[Guillaume]

A brute force approach would work:

while true
     Stimuli = Stimuli(randperm(numel(Stimuli)));  %shuffle randomly, may contain repetitions
     if ~any(strcmp(Stimuli(1:end-1), Stimuli(2:end)))  %check for two consecutive identical strings
        break; %no identical consecutive strings, exit loop
     end
 end

[Varghese]

Thank you Guillaume !! It worked !