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]: ['t', '7015', '2239', 'I', 'F', 'E', '1363', '9615', '6179', '2539', 'z', '8745', '1319', '4715', '9071', 'K', '3707', '6149', 'd']
[A]: 62656


[Q]: ['t', '7469', 'Y', 'N', '8137']
[A]: 15606


[Q]: ['b', '6213', '1735', 'W', '2533', '6841', '9087', 'U', '7859', '5439', 'h', '793', '3111', 'b', '6305', '7275']
[A]:
57191