Instructions: In this task you will be given a list, of lists, of integers. For every inner list contained in the input list, you should multiply every even number in that list. The output should be a list of integers with the same length as the number of lists in the input list. If there are no even numbers in an inner list you should output 0 for that list.
Input: [[-20, 29], [13, 35, 49], [16, 43, -45, 19], [-50, -44, -32, -1], [9, 39, -10], [-5, 45, 33, 28, -45], [-39, 45, -19, -22], [-31, -42, 36], [33, -33, 9, -31], [35, -7, -17, 41], [18, 41, 31, 48]]
Output:
[-20, 0, 16, -70400, -10, 28, -22, -1512, 0, 0, 864]