I have 2 dice. One regular die and an invisible die. Numbers 1 to 6 are written on the regular die. But you don't know what's written on the invisible dice.,After tossing both, I speak the sum of outcome of both die. It so happens that the outcome is always an interger between 1 to 12, with equal probability (1/12 each). Can you guess what are the numbers printed on special invisible dice?