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.
--------
Question: ['6585', '5263', '9497', '1117', 'a', 'F', 'w', '6595', '547']

Answer: 29604


Question: ['1869', 'q', '5919', 'D', '7733', '2641', 'h', '1327']

Answer: 19489


Question: ['5299', '659', '4187', 'a', '8291', 'J', '7091', 'l', 'i', 'J', 'k', 't', 'M', 'k', 'A', '4099', '9149', '7205', 'm']

Answer:
45980