159040

What we did is that we first got 12 on each side except the left side that one was 11 so then because on one domino it was 3 and 4 so we switched them around and that is how we got our answer. We first started playing around and moving the Dominos and then we put six in every column and then we saw that the all the columns had the number 13 except from 1 column so we switched all the numbers around to make the number 12 and all of them were correct.