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.

Q: ['W', 'O', 'c', 'r', 'E', 'w', '9811', '6421', '3543', '4293', '8255', 't', '229', '745', 'w', 'p', '6861', '5305', 'h']

A: 45463
****
Q: ['4997', '5005', '6773', 'q', 'K', '8391', '7303', 'K', 'N', '5417', '8573', 'z', '8653', '8343', 'm', 'L', '1587', 'p', '5323']

A: 70365
****
Q: ['I', 'o', '4741', 'U', 'j', '9437', '7519', 'H', '7597', 'H', '5157', 'U', 'x', 'r', 'U', '3509', '9759']

A:
47719
****