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]: ['2469', 'c', '6931', 'a', '2167', '9493', '9403', '4123', '4949', 'R', 'V', 'h', '315', 'T', '9411', 'M', '1329', '8217', '6105', 'Y']
[A]: 64912


[Q]: ['1395', '3605', '6001', 's', 'h', 'T', 'K', 'X', '9413', 'X', '5099', 'c', 'f', 't', 'S', 'f', '4651']
[A]: 30164


[Q]: ['8191', 'p', '4439', '4177', '361', 'y', '113', 'q', 'D', 'B', '6021', 'J', 'H', '8525']
[A]:
31827