allinputs = {[1 2] [2 3] [3 4] [5 6]}
A = []

inputArray = inputBuilder(A,[],allinputs,1)

function inputArray = inputBuilder(A,currBuild, allInputs, currIdx)

if currIdx <= length(allInputs)

    for i = 1:length(allInputs{currIdx})
        mybuild = [currBuild allInputs{currIdx}(i)];
        inputBuilder(A,mybuild,allInputs,currIdx + 1);

    end

    if currIdx == length(allInputs)
        A = [A mybuild];

        %debug output
        mybuild
    end


    if currIdx == 1
        inputArray = A;
    end


end