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: ['i', 'o', '1321', 'I', 'W', 'e', '1201', 'I', 'e', 'F', '9841', 'm', '9827', 'q', 'f', 'X', '8261']

Output: 30451


Input: Consider Input: ['6867', 'x', '8481', '5091', '979', 'a', 'S', 'i', 'd', '1591']

Output: 23009


Input: Consider Input: ['2935', '4989', 'G', 'L', 'U']


Output: 7924