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: ['3873', 'D', 'J', '2799', 'k', 'F', 'I', '3457', '5647', '4815', '7509', 'Y', '1251', '2211']

A: 31562
****
Q: ['o', 'L', 'E', 'V', 'D', 's', 'Z', 'm', 'a', '2785', 'I', 'v', 'B', '7909', '1599', 'V', 'N']

A: 12293
****
Q: ['Y', '325', '4917', '7127', 't', 'M', 'd', 'Q', 'V', '7273', '7089', 'Z', '3081', '5413', 'A', 'W', '7845', '2113', '8007', 'Z']

A:
53190
****