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.

Ex Input:
['129', '8667', 'E', '2919', 'e', 'Y', 'h', 'm', '501', '5911', 'q', '4955', 'D', '1369', 'W']

Ex Output:
24451


Ex Input:
['339', 'h', 'd', '7449', 'e', 'u', '5055', '7029', '9009', 'G', 'U', '3', '441', '3273', 'K', '3827', '7069', 'x']

Ex Output:
43494


Ex Input:
['6625', '4343', 'W', 'j', '1475', 'z', '7951', 'S', 'G', 'Q', 'n', '2537', 'H', 'D', 'P', '5969', '7025']

Ex Output:

35925