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.

['7763', '6003', 'V']
13766

['9989', 'B', 'E', '5181']
15170

['8119', '1025', '511', '9129', '5833', '669', '2427', '2461', '5693', 't', 'p', '8311']

44178