generate all combinations in a list of array

Question

I have a list like

list = [ [11, 7, 4, 2, 1, 0],
         [14, 13, 10, 9, 7, 6, 5, 2, 1, 0],
         [14, 13, 12, 11, 9, 6, 4, 2, 1, 0],
         [15, 14, 13