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.

[EX Q]: ['l', '2511', '2071', 'o', 'F', '7583', '1909', '1859', '3299', '3853', 'h', 'P', 'P', '9175', 'B', 'F']
[EX A]: 32260

[EX Q]: ['k', '6555', 'L', '7549', 'W', 'y', 'y', '8817', 'J', 't', 'X', 'M', 'N', 'G', '7441', '283']
[EX A]: 30645

[EX Q]: ['9171', 'N', '5477', 'i', '9417', '919', 'A', 'R', 'F', 'k', '9691', 'j', 'p', 'E', '1499', 'V', 'm']
[EX A]:
36174