Write a function xmult() that takes two lists of integers as input and returns a list contain- ing all products of integers from the first list with the integers from the second list. >>> xmult([2], [1, 5]) [2, 10] >>> xmult([2, 3], [1, 5]) [2, 10, 3, 15] >>> xmult([3, 4, 1], [2, 0]) [6, 0, 8, 0, 2, 0]