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

A: 21169
****
Q: ['9211', '1889', '7371', '9649', 'b', 'y', 'q', 'a', 'i', '1137', '3291', '8625']

A: 41173
****
Q: ['9909', 'p', '1725', 'R', '7767', 'E', 'k', '7927', '1357', '2229', 'I', 'Q']

A:
30914
****