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: ['R', '9003']
A: 
9003
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: ['R', '9003']
A: 
user
9003
assistant
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: ['R', '9003']
A: 
9003