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]: ['i', 'o', '5363', '5937', 'x', '6705', 'w', '5495', 'E', '9823', 'F', '83', '8443', '5223']
[A]: 47072


[Q]: ['291', 'R', 'N', '983', '2879', 'C', '3797', '4837', '793', '5489', 'k', '535', 'L', '3605', 's', '3701', 'U', '4399', '2489', '4739']
[A]: 38537


[Q]: ['3193', '8999', 'X', '8417', 'e', 'C', '5871', 'W', '6249', 'e', 'z', '2055', '7541', 'c', '237', '9557', 'V']
[A]:
52119