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]: ['m', '4645', '711', 'l', '5085', '8989', '2387', 'n', 'V', '1613', '4011', '3261', 'p', 'X', '349', 'e']
[A]: 31051


[Q]: ['2765', '6767', '7645']
[A]: 17177


[Q]: ['1967', '3005', 'b', '5305', '5775', 'f', '3911', 'd', 'p', '983', '3291', '6879', 'S', '5417', 'P', '5251', '9657', '5855']
[A]:
57296