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:
['Q', 'v', 't', '223', 'm', 'l', 'c', 'M', 'b', '2227', 'P', 'e', 'n', 'f', 'S', '2205', '3517', '5545']
answer:
13717


question:
['q', '8155', 'L', 'v', '2657', 'X', 'v', '2353', '151', 'R', '967', '4327']
answer:
18610


question:
['r', '9889', 'j', 'T', '3933', '3497', 'N', '8831', '4859', 'u', '2659', 'T', '6437', 'r']
answer:

40105