How can I create a matrix with the results of a disp function?

J = [0 3 4;3 0 8;4 8 0];
for i =1:numel(J)
    [i,j] = ind2sub(size(J),find(triu(J==i)));
    disp([i j])
end

I have the above code and as a result I get 1 2 ; 1 3; 2 3, which are the positions of the elements 3,4 and 8 respectively. I want to get the position in decreasing order, that is firstly for the 8--> 2-3,next for the 4--> 1-3 and lastly 3--> 1-2.

How can I create a matrix M having the form of:

M=[8 2 3
   4 1 3
   3 1 2]

Thank you in advance.