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]: ['o', 'L', 'E', 'V', 'D', 's', 'Z', 'm', 'a', '2785', 'I', 'v', 'B', '7909', '1599', 'V', 'N']
[EX A]: 12293

[EX Q]: ['3351', '6445', 'Y', '8455', 'V', 'z', 'a', 'V', 'S', '8551', '4101', 'q', '8743', '5999', '7155', '3825', '2241', '9957']
[EX A]: 68823

[EX Q]: ['r', 'G', '2125', '3235', '9763', '7589', 'Q', 'p', '121', '7345']
[EX A]:
30178