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]: ['o', '7099', 'G', 'v', 'H', 'J', 'k', '1607', 'i', '9765', '2489', '8031']
[A]: 28991


[Q]: ['B', '9189', '3691', '2869', '1525', 'd', 'H', 'P', '8613', 'b', 'r', '5289', 'V', '6433', '8733', 'K', '8105', '1041', 'U', 'L']
[A]: 55488


[Q]: ['1701', 'l', 'H', '1053', '2747', '8219', '199', 'N', 'm', '6999', '883', 'S', '6077', 'M', 'n', 'O', '4641']
[A]:
32519