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.

['4509', '4165', '8651', '8057', 'a', '2241', 't', 'i', 'q', 'S', '5149', 'J', 'j', '1373', 'W', 'X', '235', 'm', '3225']
37605

['r', 'b', 'G', 'H', '255', '6809', '5133', '1059', '4317', 'P', '7219', 'd', '805', 'G', '5243', '8305', '8509', 'o']
47654

['z', '2205', '5589', 'p', 'T', '6103', 'w', 'v', '1551', 'j', 'Y', 'i']

15448