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.

['v', '9511', 'f', 'q']
9511

['9069', '8333', 'H', '2049', '8051', 'L', '2749', '8819', '2883', '9317', 'M', '6515']
57785

['8099', '415', '7977', 'l', 'N', 'g', '7679', '2051']

26221