Detailed Instructions: 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.
Q: ['k', 't', 'b', '1137', '6085', 'u', '359', 'y', '671', '2757', '9245', 'y', '6195', '7941', '327', 'H', '5931', '2817']
A:
43465