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]: ['y', 'R', 'b', 'v', 'm', 'H', '9903', '8689', 'D', '1023', 'a', '233', '1833', 'o', 'n', 'm', '5531']
[A]: 27212


[Q]: ['v', '4119', 'I', '475', 'd', 'L', '909', 'F', 'V', '775', 'k', 'A', '9411', '8383', 'W', '1521', 'z', 'j', '7057', 'I']
[A]: 32650


[Q]: ['9203', '4903', 'V', '3489', 'F', '6881', '8745', '9609', 'W', 'f', 'b', 'I', '8409', 'G', 'i', '5259']
[A]:
56498