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: ['v', '4119', 'I', '475', 'd', 'L', '909', 'F', 'V', '775', 'k', 'A', '9411', '8383', 'W', '1521', 'z', 'j', '7057', 'I']

Output: 32650


Input: Consider Input: ['F', 'z', '1159', '345']

Output: 1504


Input: Consider Input: ['3345', '5257', '8979', 'l', 'L', 'C', 'T', 'h', '5737', '5839', 'R', '9859']


Output: 39016