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]: ['8763', 'k', '3653', 'v', 'd', 'D', 'm', '1037', 'c', 'F', '2349', '7843', '3259', 'v', '5555', '7565', '8137', 't']
[A]: 48161


[Q]: ['m', 'g', '7251', '5873', '59', '7345']
[A]: 20528


[Q]: ['L', '855', 'E', 'u', 'h']
[A]:
855