TASK DEFINITION: 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.
PROBLEM: [[-20, -21], [49, 15, 47, -50, 14], [1, -3, 31], [41, -23], [-38, -35, 38, 17], [17, -22], [-35, 2, 46, 14], [-10, -11], [14, -44, 38, -35, 0], [-47, -22]]

SOLUTION: [-20, -700, 0, 0, -1444, -22, 1288, -10, 0, -22]

PROBLEM: [[19, 43, 37, 28], [47, 1, 11, 14, 41], [25, -9, -37, 49, 4], [-35, 20, 8], [41, -20], [8, -31, -17, 1], [36, -38], [-19, 35, 6, 17], [1, -13]]

SOLUTION: [28, 14, 4, 160, -20, 8, -1368, 6, 0]

PROBLEM: [[-50, -8, -8], [14, -43], [31, 50, 37, -37, -10], [23, -23, -16, -27], [39, 5], [24, 0, -19, -40, -37], [-42, -47, 34, -4, 26], [-47, -6], [42, -36, -28], [18, 6, 10, 40, 34], [36, 48, 7, -45, 33]]

SOLUTION:
[-3200, 14, -500, -16, 0, 0, 148512, -6, 42336, 1468800, 1728]