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: ['5199', 'h', 'T', 'T', 'l', '1661', 'p']

A: 6860
****
Q: ['3051', 'Z', 'q', 'u', 'x', '2747', 'e', 'B', '4225', 'Q', 'R', '4629', 'F']

A: 14652
****
Q: ['d', '8533', '637', 'w', '5607', 'T', 'b', 'h', 'h', 'R', '7489', 'j', 'U', 'R', 'o', 'w', '7945']

A:
30211
****