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: ['1203', '6179', '9835']

Output: 17217


Input: Consider Input: ['r', 'b', 'G', 'H', '255', '6809', '5133', '1059', '4317', 'P', '7219', 'd', '805', 'G', '5243', '8305', '8509', 'o']

Output: 47654


Input: Consider Input: ['9247', 'G', '5119', '9663', 'i', '4525', '5865', 'K', 'y', 'I', '3623', 'M', '1971', '8689', '8805']


Output: 57507