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: ['X', 'f', 'p', 'R', 'N']

A: 0
****
Q: ['2775', '7405', 'F', 'D', '9025', '827', 'e', 'j', 's', 'e', 'Q', '1137', 'G']

A: 21169
****
Q: ['e', 'F', 'i', 'o', 'u']

A:
0
****