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:
['5573', '6221', 'C', '8649', '6603', 'q', '9403']
answer:
36449


question:
['1395', '3605', '6001', 's', 'h', 'T', 'K', 'X', '9413', 'X', '5099', 'c', 'f', 't', 'S', 'f', '4651']
answer:
30164


question:
['L', '6829', '8115', '327']
answer:

15271