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.

['o', '8089', '2159', '943', '1255', 'w', 'Y', '3723', 'n', '7767', '2209', 'F', 'c', 'J', '5259', '4427', 'n', 'U']
35831

['4159', 'H', 'h', 'W', 'w', 'i', 'G', 'l', 'j', '5467', '9219', 'j', 'q', 'n', '5465', '6197', 'J', 'y']
30507

['725', '9565', 'g', 'K', '2425', '6875', 'I', 'U', '3977', '83', '9155', 'D', '9285']

42090