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.

['3655', '1349', '6519', '1019', 'v', '4811', '8609', '9147', '8225', '2665', '2627', '5839']
54465

['P', '237', 'X', '8893', '7931', 'F', '8359', 'S', '6931', '6953', 'r']
39304

['J', 'G', 'r', 'K', 'h', '1007', 'g', '5865', 'p', '5993']

12865