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.

['2775', '7405', 'F', 'D', '9025', '827', 'e', 'j', 's', 'e', 'Q', '1137', 'G']
21169

['8667', '4129', '7075', '6345', '1315', 'M', 'F', '9073']
36604

['7827', 'j', 'R', '8309', 'w', '2575', '147', 'f', '9465', 'W', 'y', 'X', 'g', 'G', '7257', 'N', '6383']

41963

