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: ['1869', 'q', '5919', 'D', '7733', '2641', 'h', '1327']

A: 19489
****
Q: ['3949', 'f', 'z', '7733', '9849', 'h', '3895', '9045', '2055', '5007', 'm', '1157', 'l']

A:
42690
****