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:
['D', 'm', 'P', '2433', '6731']
answer:
9164


question:
['L', 'w', '2783', '6993', 'd', '9173']
answer:
18949


question:
['8393', '6351', '3093', '8431', '6263', 'Q', 'C', 'H', '1463', '1175', '1953']
answer:

37122