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.

Input: Consider Input: ['o', 'J', 'B', '7765', '7781', '5513', '8721', 'u', '9557', 'C', 'A', '1281', '6565', 'H', '5559', '1695', '7577']

Output: 62014


Input: Consider Input: ['6957', '4603', '5299', '8451', '9803', 'b']

Output: 35113


Input: Consider Input: ['j', '3065', '1147', 'f', 'j', 'l', '8649']


Output: 12861