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.

['1965', '8127', 'x', '4981', '8077', 'O', '467', '701', 'V', 'm', 'y', '5989', '123', 't', '4019', 'j', '1827', '8799']
45075

['6787', 'W', 'I', '4929', 'j', 'I', '3487', 'F', '3927', 'Q', 's', 'X', '9939', 'n']
29069

['8333', '4595', '7647', 'v', 'l', 'S', '9439']

30014

