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: ['27', 'S', '3335', '9741', 't', '7069', '2645', '4045', '6593', '207', '5041', 'G', 'o', 'c', 'N']
A:
38703