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]: ['7361', '3605', 'V', '2039', '9665', 'X', 'b', '1195', '657', '6509', '7195', '2013', '1847', 'v', '9499', '1761']
[A]: 53346


[Q]: ['R', 'k', '3355', 'Y', '6635', 'M', '4839', 'T', 'd', '495', 'g', 'E', 'g', 'F', 'S', '5377', 'g']
[A]: 20701


[Q]: ['q', 'o', 'b', '7783', 'I', '4939', 'D', 'h']
[A]:
12722