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: ['x', '1305', 'b', '8193']

A: 9498
****
Q: ['S', '515', '4099', '3479', '7385', '8545', '1295', 'o', 'e', 'h', '9029']

A:
34347
****