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]: ['m', '4645', '711', 'l', '5085', '8989', '2387', 'n', 'V', '1613', '4011', '3261', 'p', 'X', '349', 'e']
[A]: 31051


[Q]: ['g', '5301']
[A]: 5301


[Q]: ['K', 'J', 'X', 'M', '1169', 'E', '6655', 'y', '6617', 'J', '3259', '5467', '4985', 'N']
[A]:
28152