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: ['7215', 'd', 'q', 'k', '9301', 'P', 'x', 'C', 'g', 'e', 'o', '2769', '6993', '9769', 'v', '9007', '4131', '8627', 'q']

A: 57812
****
Q: ['2915', '4443', 'Z', '3409', '1417', 'H', 'T', 'u', '3373', 'U', '115', 'R']

A: 15672
****
Q: ['8703', 'h', '245', 'I', '675', '6951', 'n', 'e', 'g', 'R', '4815', 'Y', '7365', '6919']

A:
35673
****