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]: ['Q', 'v', 't', '223', 'm', 'l', 'c', 'M', 'b', '2227', 'P', 'e', 'n', 'f', 'S', '2205', '3517', '5545']
[A]: 13717


[Q]: ['s', 'd', 't', '8235', '2279', '7477', '3029', '4377', '9153', '4309', '2295', '407']
[A]: 41561


[Q]: ['129', '8667', 'E', '2919', 'e', 'Y', 'h', 'm', '501', '5911', 'q', '4955', 'D', '1369', 'W']
[A]:
24451