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]: ['7335', '813', '6461', '8903', '3709', 'V', 'G', 'I', 'P', 'p', 's', 'v', 'R', '4697', '4263', '9897']
[EX A]: 46078

[EX Q]: ['m', '3481']
[EX A]: 3481

[EX Q]: ['5417', '9261', 'V', '4343', 'G', '8849', 'R', '9851', '8351', 'X', '6917', 'M', 'C', 'A', '9365', '3277']
[EX A]:
65631