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]: ['3497', '761', '6157', 'J', 'n', '139', '9895', '2939', 'K', 'I', '2161', 'c', 'a', '485', '7959', 'i', '4753', '3305', 'G', '3475']
[A]: 45526


[Q]: ['M', '5201', '2787', 'z', '9465', 'X', 'X', '4017', '8305', 'y', '6897', 'y', '6045', '9863', 's', 'd', '3611', 'l', 'd']
[A]: 56191


[Q]: ['h', 'f', 'D', '7109', '5147', '3009', '8043', 'M', 'o', 'P', '3969', '3679', '7611']
[A]:
38567