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: ['5121', 'H', 'W', '5257', '6973', 'h', 'P', 'l', '8627', '3945', 'L', '4723', '2167', '9377']
A:
46190