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.

Input: Consider Input: ['y', 'F', '135', '7359', '8579', '6809', '3979', 'H', 'm', '5059', '373', 'Y']

Output: 32293

Input: Consider Input: ['b', 's', 'v', '4757', '9063', 'I', '8397', '7975', 'Q']

Output: 30192

Input: Consider Input: ['Z', '9941', '8847', '5041', 'Y', 'v', '611', '1871', 'T', 'b', 'U', 'n', 'd', '7777', '9745', 'v', '8063', '8407', 'S', '4051']
Output: 64354