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.

['1395', '3605', '6001', 's', 'h', 'T', 'K', 'X', '9413', 'X', '5099', 'c', 'f', 't', 'S', 'f', '4651']
30164

['1869', 'q', '5919', 'D', '7733', '2641', 'h', '1327']
19489

['E', '9431', 'j', '6671', '5317', 'b', 'Q', '8723', 'W', 'X', 'c', '129']

30271