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: ['6957', '4603', '5299', '8451', '9803', 'b']

A: 35113
****
Q: ['3839', 'D', '4741', 'L']

A: 8580
****
Q: ['9201', '5685', 'v', 'w', 'v', 'r', 'Y', 'm', 'q', 'e', 'P', '7595', 'c', 'W', 'd', '9985', 'V', '3719']

A:
36185
****