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]: ['U', '5885', 'u', 'Y', 's', 'w', 'j', '9629', '9505', 'U']
[A]: 25019


[Q]: ['5467', '3013', '8325', '4005', 'J', 'V', '395', '7477', 'E', 's', '1337', 'g', 'v', '8569', '9757', 'x', '3909', '2983', 's', '7917']
[A]: 63154


[Q]: ['8861', '3231', 'F', 'H', 'f', 'j', '3439', 'c', '6791', 'd', '4073', 'u', 'o', 'd']
[A]:
26395