In this task, you are given an input list A. You need to find all the elements of the list that are numbers and calculate their sum.

['D', 'C', '7295', 'g', 'j', '1387', 'O', '4701', 'B', 'd', 'W', 'b', 's', 'n', 'n', '4917', '2941', '1825', 'x']
23066

['q', '8155', 'L', 'v', '2657', 'X', 'v', '2353', '151', 'R', '967', '4327']
18610

['3023', '6663', 'N', '3441', '4951', '183', 'y', 's', '1177', 'C', 'd', 'v', '6427', 'j']

25865