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: ['m', '6153', 'A', '6173', 'x', '7527', '8501', 'g', 'r', 'K', 'I', '3103', '8347']

Output: 39804


Input: Consider Input: ['3557', '3345', '307', '9791', '1897', 'O']

Output: 18897


Input: Consider Input: ['929', 'x', 'p', 'j', '9285', '4897', '5451', 'T', '7455', '1979', '6129', 'U', 'f', 'G']


Output: 36125