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: ['1845', '273', '6921', 'u', '165', 'n', 'y', 'I', 'u', 'X', '5503', 'L', 'G', 'V', '6223', '1123', 'v']

Answer: 22053


Question: ['3469', 'n', '5561', '8597', '921', '4737', 'r', 'P', '7127', '3651', 'D', '1703', 'y']

Answer: 35766


Question: ['3877', '2685', 'f', 'r', 'q', 'o', 'k', 'i', '2299', '9075', 'X', '4303', '7379', '9205', 'V', '9655', 's']

Answer:
48478