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.

Q: ['4389', '8535', 'D', '6063', 'z', 'r', 'w', '5725', '291', 'a', '9059', '569', '2943', 'W']

A: 37574
****
Q: ['2417', '6671']

A: 9088
****
Q: ['5757', 'h', '809', 'X', 'K', 'P', 'f', '6743', 't', '5611', 'p', 'Z', '7147', '8293', '629', '3459', 'Q']

A:
38448
****