instruction:
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:
['8667', '4129', '7075', '6345', '1315', 'M', 'F', '9073']
answer:
36604


question:
['2775', '7405', 'F', 'D', '9025', '827', 'e', 'j', 's', 'e', 'Q', '1137', 'G']
answer:
21169


question:
['289', '1621', 'S', '1673', 'W', 'Q', 'c', 'L']
answer:

3583