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: ['s', '6419', '3925', '7415', '6177', 'B', '5573', 'V', 'W', 'p', '5057', '4201', 'e', 'c', '9527', 'O']
A:
48294