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.

['8743', 'Y', 'O', '8265', '1029', '5689', 'F', 'j', 'Z', 'i', 'S', '1285', '737']
25748

['8763', 'k', '3653', 'v', 'd', 'D', 'm', '1037', 'c', 'F', '2349', '7843', '3259', 'v', '5555', '7565', '8137', 't']
48161

['V', '8701', '867', 'z', 'x', '2937', '8107', '3969', 'E']

24581