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]: ['3655', '1349', '6519', '1019', 'v', '4811', '8609', '9147', '8225', '2665', '2627', '5839']
[A]: 54465


[Q]: ['R', 'k', '3355', 'Y', '6635', 'M', '4839', 'T', 'd', '495', 'g', 'E', 'g', 'F', 'S', '5377', 'g']
[A]: 20701


[Q]: ['z', '2783', 'Y', 'm', 'b', '9107', '2115', '5395', '3433', 'k', '2229', '7663', '5635', '3201', 'b', 't', 'I']
[A]:
41561